Turning cooler after the last day of summer

Published: Sep. 21, 2022 at 4:46 AM EDT|Updated: Sep. 21, 2022 at 2:11 PM EDT
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Meteorologist John Gross has your First Warn 5 Forecast.

SAGINAW, Mich. (WNEM) - After an active morning with severe weather, a strong cold front moving through Mid-Michigan will set off a cooling trend, meaning the last day of some warmth happens to coincide with the last full day of summer.

Rain chances the remainder of the week will be more lake-effect development due to the cooler air moving in.

Thursday night is also a night to keep an eye on temperature-wise, it will be downright cold with the potential for frost!

Here’s the latest forecast!

Today (Wednesday)

After severe storms this morning, we still can’t completely rule out a few lingering showers along a passing strong cold front going into the afternoon and evening hours. Most stay dry for the remainder of the day.

High temperatures will also see quite a split today. We’ll hold lower to mid 70s in our northern tier, while the Tri-Cities will come in closer to 80 degrees. Flint could still reach near the mid 80s degrees this afternoon.

Winds today will change direction from the SW to the west and eventually to the NW later this evening into tonight. Stay breezy around 5-15 mph. Gusts near 20 mph will be possible.

Wednesday will have a temperature split due to a cold front moving through.
Wednesday will have a temperature split due to a cold front moving through.(WNEM)

Evening & Tonight

Skies will stay variably cloudy tonight with rain chances isolated up north. This is as lake-effect kicks in with the colder air from the north. Many will stay dry overnight, but our northern tier and the eastern Thumb will see the best chance for showers during the period.

Lows will fall to the mid 40s farther north and near 50 south. Winds will stay breezy mainly from the NW around 5-10 mph. Still some gusts near 15-20 mph will be possible.

Wednesday night sees the return of cooler lows.
Wednesday night sees the return of cooler lows.(WNEM)

Thursday (First Day of Fall!)

The chance for isolated to scattered lake-effect rain showers will continue, while others see a partly to mostly cloudy sky. With the cooler air aloft also moving in, we’re expecting cloud coverage to be more stubborn through much of the daytime.

Highs will be cooler as a result of this, also with a northwest wind, meaning we see 60 degrees in the Tri-Cities and near Flint, with many to the north and west not even leaving the 50s.

Wind speeds will pick up again at 10-15 mph sustained, and gusts at 25+ mph. Quite the coincidence with such a cooldown for the start of the new season!

The first day of fall features much cooler weather... sweater weather!
The first day of fall features much cooler weather... sweater weather!(WNEM)

Thursday night in particular will be a night to pay attention to temperatures. Lows will fall into the 30s for most as a result of the cooler day and airmass. Number could even be close to freezing, near 32, in our northern tier (yes, you read that right!).

Influence from the relatively warmer waters of Lake Huron overnight will keep the Thumb in the lower 40s.

Thursday night sees widespread 30s, even near freezing up north!
Thursday night sees widespread 30s, even near freezing up north!(WNEM)

Friday is expected to stay dry with some more sunshine! Rain chances then making a return during the upcoming weekend.

Give that a check in your full 7-Day Forecast!