Introduction

On March 21, 2026, mortgage rates are holding steady across several credit unions and national averages, with subtle shifts hinting at what’s ahead. If you’re shopping for a new home or refinancing, today’s lowest rate comes from Coast Central Credit Union offering a 4.00% adjustable-rate mortgage (30-year ARM) for purchases, an attractive option in a market where jumbo loan rates are nudging higher. Zillow shows the 30-year fixed jumbo rate climbing by 15 basis points this week to 6.52%, while Federal Reserve data confirms a mild uptick in inflation expectations and average mortgage rates. Here’s what you need to know before locking in a rate that fits your goals.

New Purchase - Adjustable

Lender
Term
2026-03-21
(Current Day)
2026-03-14
(7 Days Ago)
2026-03-06
(15 Days Ago)
2026-02-19
(30 Days Ago)
2026-02-04
(45 Days Ago)
2026-01-20
(60 Days Ago)
2025-12-21
(90 Days Ago)
2025-09-22
(180 Days Ago)

30 yrs

4.50%
4.75%
4.50%
4.75%
4.50%
4.75%
4.50%
4.75%
4.50%
4.75%
4.50%
4.75%
4.75% +25 bps
5.00% +25 bps
5.00% +50 bps
5.25% +50 bps

30 yrs

4.00%
4.00%
4.00%
4.00%
4.00%
4.00%
4.25% +25 bps
N/A

10 yrs

15 yrs

20 yrs

30 yrs

4.50%
4.50%
4.75%
5.00%
5.25%
5.50%
4.50%
4.50%
4.75%
5.00%
5.25%
5.50%
4.50%
4.50%
4.75%
5.00%
5.25%
5.50%
4.75% +25 bps
4.75% +25 bps
5.00% +25 bps
5.25% +25 bps
5.50% +25 bps
5.75% +25 bps
4.75%
4.75%
5.00%
5.25%
5.50%
5.75%
4.75% +25 bps
4.75% +25 bps
5.00% +25 bps
5.25% +25 bps
5.50% +25 bps
5.75% +25 bps
4.75% +25 bps
4.75% +25 bps
5.00% +25 bps
5.25% +25 bps
5.50% +25 bps
5.75% +25 bps
4.75%
4.75%
5.00%
5.25%
5.50%
5.75%

5 yrs

10 yrs

4.75%
5.24%
4.75%
5.24%
4.75%
5.24%
4.99% +24 bps
5.49% +25 bps
4.99% +24 bps
5.49% +25 bps
4.99% +24 bps
5.49% +25 bps
5.24% +49 bps
5.74% +50 bps
N/A

5 yrs

30 yrs

6.14%
6.14%
6.14%
6.14%
5.98% -16.5 bps
5.98%
5.98% -16.5 bps
5.98% -16.5 bps

AMERICA'S FIRST FEDERAL CREDIT UNION

As of March 21, 2026, the 7/1 ARM Purchase loan remains steady at a 4.75% rate with 1.0 point, showing no change over the past 7 or 30 days. This stability in adjustable-rate mortgages suggests consistent yield spreads and borrowing costs for members considering new purchases. For prospective homebuyers, especially those planning to own short-term or expecting rising incomes, this fixed initial rate can provide predictable payments before adjustment periods begin. Veterans and first-time buyers should evaluate whether an adjustable product aligns with their financial horizon given current rate stability. Given no recent fluctuations, members might also consider locking rates if fixed options become available to manage long-term cost uncertainty. Evaluate your mortgage strategy carefully in light of stable ARM pricing and potential future market shifts. For details, visit https://www.amfirst.org/loans/home/buy-a-home/.

COAST CENTRAL CREDIT UNION

As of March 21, 2026, the 30-year Adjustable-Rate Mortgage (ARM) for new home purchases remains steady at a 4.00% interest rate, unchanged from both one week and one month ago. This stability in yield spreads indicates consistent borrowing costs for members considering adjustable-rate options. For first-time buyers, this steady rate can offer predictable initial payments before potential adjustments. Veterans or those refinancing may find limited benefit in ARM products currently, given unchanged rates and no downward movement.
Members should assess their mortgage strategy carefully; if payment stability is a priority, exploring fixed-rate alternatives might be advisable. Additionally, evaluating refinancing options is prudent when potential savings exceed associated costs.

NEWPORT NEWS SHIPBUILDING EMPLOYEES CREDIT UNION

As of March 21, 2026, adjustable-rate mortgages (ARMs) for home purchases at Newport News Shipbuilding Employees Credit Union show stability in yields. The 15-year and 10-year (3-year ARM) products hold the lowest rates at 4.5%, unchanged from one week ago but down by 25 basis points over the past 30 days. The 20-year (3-year ARM) remains at 4.75%, while the 30-year (10-year ARM) is steady at 5.5%, both reflecting a similar 25 basis point decline month-over-month.
These adjustments imply reduced cost of borrowing compared to last month, benefiting members planning to purchase homes with adjustable terms. First-time buyers and those preferring shorter rate adjustment periods may find the 4.5% ARMs particularly advantageous. Given rate stability this week, members should evaluate their mortgage strategy, consider fixed-rate options if they prioritize payment certainty or explore refinancing if potential savings outweigh associated costs.

PEOPLE FIRST FEDERAL CREDIT UNION

As of March 21, 2026, 5/1 Conforming Adjustable-Rate Mortgages (ARMs) for purchase remain at a competitive 4.75%, holding steady over the past week but down by 24 basis points compared to 30 days ago. Similarly, the 10/1 Conforming ARM purchase rate is unchanged at 5.24%, reflecting a 25 basis point decline from one month prior. These reduced yields indicate a modest easing in borrowing costs for adjustable-rate products, potentially benefiting buyers seeking lower initial payments with future rate resets.
For members prioritizing short-term affordability, the stable rates on these ARMs can offer lower entry costs versus fixed alternatives. However, borrowers should assess the risk of rate adjustments after the fixed period ends. Given current trends, first-time buyers and those comfortable with some rate variability might consider these options, while those valuing payment certainty should evaluate fixed-rate loans accordingly.
Data-driven decisions remain essential; consider refinancing if projected savings outweigh adjustment risks and transaction expenses.

SAFE FEDERAL CREDIT UNION

On March 21, 2026, the 5/1 ARM Adjustable Purchase mortgage rate remains steady at 6.143%, showing no change from both one week and one month ago. This stability in rates indicates no recent shifts in yield spreads or borrowing costs for adjustable-rate borrowers. For prospective homebuyers, particularly those considering shorter-term adjustable loans, the current rate environment offers predictability without upward pressure. Veterans and first-time buyers should note that while government-backed options are not listed today, the fixed 5/1 ARM rate consistency may influence their financing strategies. Given this rate plateau, members might evaluate if locking in an adjustable rate aligns with their risk tolerance or consider refinancing if future rates decline to reduce long-term costs. For details, visit https://www.safefed.org/loans/mortgage.

Zillow National Average

Mortgage rates have remained stable today, with the 15-Year Fixed Rate Jumbo and 30-Year Fixed Rate Jumbo both at 6.393% and 6.524%, respectively. Over the past week, the 15-Year Fixed Rate Jumbo saw an increase of 0.18 basis points, while the 30-Year Fixed Rate Jumbo rose by 0.15 basis points. In the last 30 days, the most significant change was in the 30-Year Fixed Rate Jumbo, which increased by 0.39 basis points. Borrowers should note that despite recent fluctuations, rates are relatively consistent, indicating a stable borrowing environment. Potential borrowers may find value in locking in these rates before further shifts occur in the market.

Federal Reserve Economic Trends

As inflation expectations shift, they directly influence mortgage rates, affecting the cost of borrowing for consumers. Currently, the Breakeven Inflation Rate 10Yr stands at 2.380, reflecting stability in long-term inflation expectations. Meanwhile, the Mortgage 30Yr Average Rates have seen a recent increase of 0.11 points over the past week, now at 6.220, while the Mortgage 30Yr Va Average Rates rose by 0.26 points in the last month, reaching 5.909, marking it as one of the more favorable options available. In contrast, the lowest rate recorded is from the Mortgage 30Yr Usda Average Rates at 5.876. Borrowers should closely monitor these indicators to make informed decisions regarding financing options amidst changing economic conditions.

LendMesh

The smartest mortgage shoppers know that comparing lenders is more than just chasing the lowest rate—it’s about finding the right fit for your needs. At LendMesh, we empower you to make informed decisions by showing real-time mortgage rates and lending programs from credit unions and banks you can trust. Whether you’re a first-time homebuyer, looking to refinance, or simply exploring your options, you’ll find financial guidance and transparency at every turn. Our platform was designed for people like you—those who value honest advice and clear choices. Don’t settle for the first offer you see; visit our Mortgage Loans page at https://www.lendmesh.com/loans/mortgage_loans . and discover the power of comparing your options. Your best mortgage could be one click away.

Conclusion

As you plan your next move, remember that even small changes, like the 8 to 11 basis point increase in 30-year fixed rates, can affect your monthly payment by tens of dollars or add thousands over time. For buyers, the stable 4.00% ARM at Coast Central offers flexibility if you expect to move or refinance within several years. Homeowners considering refinancing should weigh current inflation trends and rising average rates to decide if locking in now makes sense. Staying informed about these subtle shifts helps you make smarter choices and avoid surprises down the road. In today’s environment, patience paired with clear financial insight is your best tool for securing affordable financing.