National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heat Builds in the West; Severe Thunderstorms and Heavy Rain in the Upper Midwest and Mid-Mississippi Valley; Extremely Critical Fire Weather in the Northwest on Saturday

A heat wave over the Southwest will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rainfall are expected over parts of the Upper Midwest to mid-Mississippi Valley today. Critical to extremely critical fire weather conditions from the Northwest and the northern Great Basin on Saturday and Sunday. Read More >

Current conditions at

Mason, Mason Jewett Field Airport (KTEW)

Lat: 42.57°NLon: 84.42°WElev: 919ft.

Fair

68°F

20°C

Humidity 79%
Wind Speed Calm
Barometer 30.03 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 31 Jul 8:35 am EDT
Extended Forecast for

Okemos MI

  • Today

    Today: Increasing clouds, with a high near 88. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 88 °F

    Increasing
    Clouds

  • Tonight

    Tonight: A chance of showers between midnight and 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 50%.

    Low: 67 °F

    Cloudy then
    Chance
    Showers

  • Saturday

    Saturday: Showers and thunderstorms likely, mainly before 3pm. Cloudy, with a high near 79. East wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 79 °F

    Showers
    Likely

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 62. Northeast wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Heavy Rain

  • Sunday

    Sunday: A 50 percent chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 77. North northeast wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 77 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 56.

    Low: 56 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 57.

    Low: 57 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

Detailed Forecast

Today
Increasing clouds, with a high near 88. Calm wind becoming west southwest 5 to 7 mph in the afternoon.
Tonight
A chance of showers between midnight and 2am, then a chance of showers and thunderstorms after 2am. Cloudy, with a low around 67. Light and variable wind. Chance of precipitation is 50%.
Saturday
Showers and thunderstorms likely, mainly before 3pm. Cloudy, with a high near 79. East wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 62. Northeast wind 7 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
A 50 percent chance of showers and thunderstorms, mainly before 2pm. Mostly cloudy, with a high near 77. North northeast wind 10 to 13 mph, with gusts as high as 24 mph.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 81.
Monday Night
Mostly clear, with a low around 57.
Tuesday
Sunny, with a high near 83.
Tuesday Night
Mostly clear, with a low around 63.
Wednesday
A chance of showers. Mostly sunny, with a high near 84.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 63.
Thursday
Mostly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Okemos MI
 42.7°N 84.39°W (Elev. 853 ft)
Last Update:
8:03 am EDT Jul 31, 2026
Forecast Valid:
8am EDT Jul 31, 2026-6pm EDT Aug 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation