Minnesota 7-Day Forecast: Highs Jump From 68°F to Near 90°F by Memorial Day Week

What changed

The National Weather Service forecast for central Minnesota shows a steady stair-step of warming over the next seven days:

| Day | Date | Forecast High | |---|---|---| | Friday | May 22 | 68°F | | Saturday | May 23 | 72°F | | Sunday | May 24 | 81°F | | Memorial Day | May 25 | 88°F | | Tuesday | May 26 | 89°F | | Wednesday | May 27 | 87°F | | Thursday | May 28 | 84°F |

Highs peak Tuesday at 89°F, then ease slightly to 84°F by Thursday. The biggest single-day jump comes between Saturday's 72°F and Sunday's 81°F.

Why it matters

A jump from the upper 60s to near 90°F in less than a week pushes a lot of growing degree units into corn and soybean fields in a short window. For recently planted or just-emerging crops, rapid heat accumulation can speed up early vegetative growth. Soil moisture conditions and overnight lows will also play a role — worth keeping an eye on local forecasts for your specific county.

What to watch next

• Updated NWS forecasts — seven-day outlooks shift frequently; check for any revisions to the Tuesday–Thursday window especially.
• Overnight lows — warm nights paired with warm days accelerate GDU accumulation even more.
• Soil moisture — high heat with dry soils could stress young seedlings; high heat with adequate moisture tends to push rapid early growth.

Source notes

All temperature data from the U.S. National Weather Service API (NWS gridpoint forecast for central MN), accessed May 25, 2026.