Introduction

On September 18, 2025, mortgage rates are showing subtle shifts that could make a difference for your next home purchase or refinance. While some jumbo loan rates eased slightly at credit unions like Altura and Abound, dropping by as much as 25 basis points on 30-year fixed jumbo loans, others held steady. Zillow’s national data shows a small uptick in the 15-year fixed jumbo rate to 6.299%, yet the lowest available rate today comes from Hudson Valley Credit Union at 4.5% for a 15-year fixed jumbo loan. Inflation expectations ticked up a bit too, which may signal future rate adjustments. Here’s what you need to know before locking in a rate and making your move in this changing landscape.

New Purchase - Jumbo 15 yrs Fixed

Lender
2025-09-18
(Current Day)
2025-09-11
(7 Days Ago)
2025-09-03
(15 Days Ago)
2025-08-19
(30 Days Ago)
2025-08-04
(45 Days Ago)
2025-07-20
(60 Days Ago)
2025-06-20
(90 Days Ago)
5.50%
5.50%
5.75%
+25 bps
5.88%
+37.5 bps
5.88%
+37.5 bps
4.88%
5.00%
+12.5 bps
5.62%
+74 bps
5.50%
+62.5 bps
5.13%
5.13%
5.50%
+37.5 bps
5.50%
+37.5 bps
5.75%
+62.5 bps
5.75%
+62.5 bps
5.13%
5.00%
-12.5 bps
5.50%
+37.5 bps
5.38%
+25 bps
4.50%
4.50%
4.88%
+37.5 bps
5.00%
+50 bps
5.13%
+62.5 bps
5.50%
+100 bps
5.38%
5.38%
5.63%
+25 bps
5.63%
+25 bps
5.75%
+37.5 bps
5.75%
+37.5 bps
5.38%
5.38%
5.63%
+25 bps
5.63%
+25 bps
5.75%
+37.5 bps
5.75%
+37.5 bps
5.38%
5.50%
+12.5 bps
5.63%
+25 bps
5.63%
+25 bps
5.75%
+37.5 bps

New Purchase - Jumbo 30 yrs Fixed

Lender
2025-09-18
(Current Day)
2025-09-11
(7 Days Ago)
2025-09-03
(15 Days Ago)
2025-08-19
(30 Days Ago)
2025-08-04
(45 Days Ago)
2025-07-20
(60 Days Ago)
2025-06-20
(90 Days Ago)
6.13%
6.13%
6.50%
+37.5 bps
6.50%
+37.5 bps
6.50%
+37.5 bps
5.88%
6.00%
+12.5 bps
5.75%
6.00%
+25 bps
6.38%
+62.5 bps
6.38%
+62.5 bps
5.88%
5.88%
6.25%
+37.5 bps
6.38%
+50 bps
6.50%
+62.5 bps
6.63%
+75 bps
5.75%
5.75%
6.25%
+50 bps
6.25%
+50 bps
5.75%
5.88%
+12.5 bps
6.25%
+50 bps
6.25%
+50 bps
6.50%
+75 bps
6.50%
+75 bps
6.75%
6.88%
+12.5 bps
7.25%
+50 bps
6.25%
-50 bps
7.38%
+62.5 bps
6.50%
-25 bps
6.25%
6.38%
+12.5 bps
6.63%
+37.5 bps
6.63%
+37.5 bps
6.75%
+50 bps
6.75%
+50 bps
6.00%
6.25%
+25 bps
6.38%
+37.5 bps
6.50%
+50 bps
6.63%
+62.5 bps

ABERDEEN PROVING GROUND FEDERAL CREDIT UNION

As of September 18, 2025, Jumbo 15 Year Fixed and Jumbo 30 Year Fixed mortgage rates remain steady compared to one week ago, holding at 5.50% and 6.125%, respectively. Over the past 30 days, both products have decreased by 37.5 basis points, reflecting a moderate easing in borrowing costs for high-value property buyers. The Jumbo 15 Year Fixed at 5.50% currently offers the lowest rate among these jumbo options, benefiting members seeking shorter-term fixed commitments with lower yield spreads. For borrowers prioritizing payment stability, the unchanged rates over seven days suggest limited short-term volatility in jumbo loan pricing.
Members considering purchase financing should evaluate how these stable yet historically lower rates affect long-term affordability; those with higher loan amounts may find value in locking fixed rates now. It is advisable to assess your mortgage strategy in light of recent declines and consider refinancing if potential savings outweigh associated costs.

ABOUND FEDERAL CREDIT UNION

On September 18, 2025, 15 Year Fixed Jumbo Purchase loans remain steady at 5.0%, showing no change over the past week. This rate represents the lowest available option in today’s jumbo fixed-rate purchase programs, offering a relatively stable borrowing cost for members seeking shorter-term financing. Meanwhile, the 30 Year Fixed Jumbo Purchase rate has decreased by 12.5 basis points to 5.875% compared to one week ago, indicating a modest improvement in long-term financing costs.
For borrowers prioritizing predictability and lower interest expense over time, the decline in the 30-year jumbo rate may enhance affordability on larger loan amounts. Conversely, members targeting faster equity build-up with shorter terms can benefit from the unchanged 15-year fixed rate. Evaluating individual financial goals alongside current yield spreads will support informed decisions; consider fixed-rate options if stability is preferred or refinancing opportunities if savings exceed transaction costs.

Altura

As of September 18, 2025, mortgage rates for Jumbo Fixed Purchase Loans have declined notably over the past week. The 15-Year Jumbo Fixed rate decreased by 12.5 basis points to 4.875%, reflecting a modest reduction in borrowing costs for high-value homebuyers seeking shorter terms. Similarly, the 30-Year Jumbo Fixed rate dropped by 25 basis points to 5.75%, presenting improved affordability for buyers prioritizing longer-term stability.
These rate reductions may benefit members considering large loan amounts, allowing potential savings in interest expense over time. First-time buyers or those targeting jumbo properties should evaluate fixed-rate options if they value predictability amid fluctuating markets. Given these trends, assessing refinancing opportunities could reduce long-term costs if current rates remain favorable compared to previous commitments.

COLUMBIA COMMUNITY CREDIT UNION

As of September 18, 2025, the Jumbo 15-year fixed purchase rate rose by 12.5 basis points, moving from 4.875% last week to 5.0% today, indicating a modest increase in borrowing costs for shorter-term jumbo loans. Meanwhile, the Jumbo 30-year fixed purchase rate remains steady at 5.875%, showing no change over the past seven days and maintaining the highest yield among today’s jumbo options.
For members seeking longer-term stability, the unchanged 5.875% Jumbo 30-year fixed rate offers predictability in monthly payments despite current market volatility. Conversely, borrowers considering a shorter amortization period should account for the recent rise in the 15-year fixed rate, which slightly increases total interest expense but may accelerate equity building.
Evaluate your mortgage strategy carefully; if you prioritize consistent payments and long-term planning, fixed-rate jumbo loans remain viable options. Consider refinancing only if potential savings outweigh associated costs given current rate shifts. For details, visit https://www.columbiacu.org/home-loans/.

DESERT FINANCIAL CREDIT UNION

As of September 18, 2025, Jumbo 15 Year Fixed Rate and Jumbo 30 Year Fixed Rate purchase loans remain steady at 5.125% and 5.875%, respectively. The 15-year jumbo fixed rate holds the lowest yield in today’s offerings, unchanged from one week ago, reflecting stable cost of borrowing for higher loan balances over a shorter term. Similarly, the 30-year jumbo fixed rate shows no movement in the past seven days, maintaining current yield spreads despite longer-term market volatility.
For members considering large mortgage amounts, the stable rates suggest an opportunity to evaluate fixed-rate options for budget predictability. First-time buyers or those seeking long-term financing should monitor these yields closely; small basis point shifts can impact overall interest expenses significantly. Given consistent rates, borrowers may also explore refinancing if closing costs align with potential savings.

DIGITAL FEDERAL CREDIT UNION

As of September 18, 2025, the Jumbo 15 Years Fixed Purchase mortgage rate rose by 12.5 basis points to 5.125%, increasing borrowing costs for borrowers seeking shorter-term jumbo loans. In contrast, the Jumbo 30 Years Fixed Purchase rate remains steady at 5.75%, showing no change over the past week and offering a more stable yield spread for long-term financing.
Members aiming for lower monthly payments may find the unchanged 30-year jumbo fixed rate advantageous despite higher total interest over time. Conversely, those prioritizing quicker principal reduction face slightly higher rates on the 15-year option, impacting affordability.
Given these shifts, borrowers should evaluate their mortgage strategies carefully; consider fixed-rate options if you value payment stability or assess refinancing only if projected savings exceed associated costs. For details, visit https://www.dcu.org/borrow/mortgage-loans/home-mortgage-loans.html.

HUDSON VALLEY CREDIT UNION

As of September 18, 2025, 15-Year Fixed Jumbo mortgage rates remain stable at 4.5%, showing no change over the past week but a significant decrease of 50 basis points compared to 30 days ago. This lower yield reduces borrowing costs for high-value homebuyers seeking shorter terms. Meanwhile, the 30-Year Fixed Jumbo rate declined by 12.5 basis points over the last seven days to 5.75%, marking a cumulative drop of 50 basis points since last month, which could benefit borrowers prioritizing longer-term stability and predictable payments.
Members considering jumbo loans should evaluate these rate trends carefully; fixed-rate options currently offer cost predictability amid declining yields. Those planning purchases may find improved affordability with these lower spreads. For detailed comparisons and strategic planning, consider how refinancing or purchase timing aligns with your financial goals.

NAVY FEDERAL CREDIT UNION

As of September 18, 2025, Conventional 15 Year Jumbo Fixed mortgage rates hold steady at 5.375% with a slight decrease of 25 basis points over the past 30 days, reflecting a modest reduction in borrowing costs for high-balance purchase loans. Meanwhile, the Homebuyers Choice 30 Year Jumbo Fixed rate decreased by 12.5 basis points compared to last week, now at 6.75%, though it remains elevated relative to a month ago, showing a net increase of 50 basis points over that period. These fluctuations suggest cost sensitivity for jumbo loan borrowers; shorter-term fixed options currently offer more favorable yields, benefiting those prioritizing lower interest expense and quicker amortization. Members should evaluate their mortgage horizon carefully, consider fixed-rate loans for rate stability or assess refinancing potential when long-term savings surpass associated fees. For details, visit https://www.navyfederal.org/loans-cards/mortgage/mortgage-rates.html.

TOWER FEDERAL CREDIT UNION

As of September 18, 2025, 15 Year Jumbo Fixed Purchase loans hold the lowest rate at 5.375%, unchanged from last week but down 25 basis points compared to 30 days ago. This stability benefits borrowers seeking shorter-term financing with predictable payments and lower yield spreads. Conversely, the 30 Year Jumbo Fixed Purchase with 100% Financing dropped by 12.5 basis points over the past week to 6.25%, marking a 37.5 basis point decline month-over-month. This reduction in cost of borrowing may be significant for buyers prioritizing longer terms or full financing options. Members should evaluate their mortgage strategy carefully; consider fixed-rate products if payment certainty is critical, and assess refinancing opportunities where savings exceed transaction costs to optimize long-term financial outcomes.

WHATCOM EDUCATIONAL CREDIT UNION

As of September 18, 2025, Jumbo 15-Year Fixed purchase rates are at 5.375%, down 12.5 basis points from last week and 25 basis points lower than a month ago. Meanwhile, the Jumbo 30-Year Fixed purchase rate stands at 6.0%, reflecting a sharper decline of 25 basis points over seven days and a significant drop of 50 basis points compared to 30 days prior. These reduced yields on jumbo fixed-rate loans indicate narrowing yield spreads and a modest decrease in borrowing costs for high-value home purchases. Members seeking long-term financing stability may find the current fixed-rate environment advantageous, particularly those prioritizing predictable payments over loan duration. Evaluating refinancing options could be beneficial if potential savings exceed transaction costs in this declining rate context. For details, visit https://www.wecu.com/homeloans/purchase/.

Zillow National Average

As of September 18, 2025, mortgage rates are mixed. The 15-Year Fixed Rate Jumbo increased to 6.299%, reflecting a rise of 0.05% over the past day and 0.17% over the week. In contrast, the 30-Year Fixed Rate Jumbo is slightly down at 6.349%, showing a minor decrease of 0.01% from yesterday and a more significant drop of 0.13% over the last month. These fluctuations indicate varying trends in borrowing costs; borrowers may benefit from considering shorter terms like the 15-Year Fixed Rate Jumbo, which has shown a notable decline of 0.63% over the last 60 days, enhancing potential savings on long-term interest payments.

Federal Reserve Economic Trends

Recent data reveals a stable Breakeven Inflation Rate, with the 10-year rate at 2.380% and the 5-year rate at 2.430%, suggesting consistent inflation expectations. However, mortgage rates have shown notable declines; the Mortgage 30Yr Average Rates dropped by 6.35 percentage points over the past week, indicating a significant reduction in borrowing costs for homeowners. The lowest mortgage rate reported is from the Mortgage 30Yr Va Average Rates at 5.703%, which fell by 0.53 percentage points in the last month. These shifts may encourage borrowers to take advantage of lower costs while monitoring inflation indicators closely for future economic conditions.

LendMesh

A mortgage should open doors, not close them. That’s why LendMesh was created—to make the home financing process straightforward, supportive, and free from unnecessary stress. We’ve listened to stories from first-time buyers, seasoned investors, and growing families, and we’ve woven those experiences into every tool and feature on our site. Here, you can compare rates from banks you know and credit unions you might not have discovered yet—all in a single, transparent view. Our resources are written by real financial advisors who care about your future. Curious to learn more? Dive into our Mortgage Loans page: https://www.lendmesh.com/loans/mortgage-loans and find out how easy homeownership can really be.

Conclusion

Even small changes in mortgage rates can add up over time, affecting your monthly payment and total interest costs significantly. With jumbo loans hovering around the mid-5% range for 15-year terms and just under 6% for 30-year terms, now is a smart time to review your options carefully. If you’re aiming for stability, locking in a 15-year fixed jumbo rate near 4.5% from Hudson Valley could save you thousands compared to higher rates elsewhere. Keep an eye on inflation trends and lender offers; slight dips like those seen at Altura and Abound might open doors to better deals soon. Whether buying or refinancing, balancing patience with timely action ensures you get the best value without missing out on favorable conditions.