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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Mason, Mason Jewett Field Airport (KTEW)

Lat: 42.57°NLon: 84.42°WElev: 919ft.

Overcast

63°F

17°C

Humidity 88%
Wind Speed Calm
Barometer 30.23 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 17 Sep 8:55 pm EDT
Extended Forecast for

3 Miles S Okemos MI

  • Tonight

    Tonight: Cloudy, then gradually becoming partly cloudy, with a low around 54. Northeast wind 3 to 5 mph.

    Low: 54 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 72. Northeast wind 5 to 8 mph.

    High: 72 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 55. East wind 3 to 8 mph. Winds could gust as high as 18 mph.

    Low: 55 °F

    Mostly Cloudy
    then Chance
    Showers

  • Saturday

    Saturday: Showers, mainly after 8am. High near 64. East southeast wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.

    High: 64 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Cloudy, with a low around 57. East northeast wind 5 to 7 mph. Chance of precipitation is 70%.

    Low: 57 °F

    Showers
    Likely

  • Sunday

    Sunday: A 50 percent chance of showers. Mostly cloudy, with a high near 65.

    High: 65 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers before 2pm. Mostly cloudy, with a high near 61.

    High: 61 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 48.

    Low: 48 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Cloudy, then gradually becoming partly cloudy, with a low around 54. Northeast wind 3 to 5 mph.
Friday
Mostly sunny, with a high near 72. Northeast wind 5 to 8 mph.
Friday Night
A 30 percent chance of showers after 2am. Mostly cloudy, with a low around 55. East wind 3 to 8 mph. Winds could gust as high as 18 mph.
Saturday
Showers, mainly after 8am. High near 64. East southeast wind 5 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between three quarters and one inch possible.
Saturday Night
Showers likely and possibly a thunderstorm. Cloudy, with a low around 57. East northeast wind 5 to 7 mph. Chance of precipitation is 70%.
Sunday
A 50 percent chance of showers. Mostly cloudy, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 52.
Monday
A chance of showers before 2pm. Mostly cloudy, with a high near 61.
Monday Night
Mostly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 62.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
Partly sunny, with a high near 66.
Wednesday Night
Mostly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 66.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
3 Miles S Okemos MI
 42.68°N 84.42°W (Elev. 902 ft)
Last Update:
8:03 pm EDT Sep 17, 2026
Forecast Valid:
8pm EDT Sep 17, 2026-6pm EDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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