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 much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

Ionia County Airport (KY70)

Lat: 42.94°NLon: 85.06°WElev: 818ft.

Fog/Mist

63°F

17°C

Humidity 94%
Wind Speed NE 8 mph
Barometer 30.21 in
Dewpoint 61°F (16°C)
Visibility 4.00 mi
Last update 17 Sep 4:15 pm EDT
Extended Forecast for

Greenville MI

  • This Afternoon

    This Afternoon: Mostly cloudy, with a steady temperature around 70. East northeast wind around 6 mph.

    High: 70 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Northeast wind 3 to 5 mph.

    Low: 51 °F

    Decreasing
    Clouds

  • Friday

    Friday: Increasing clouds, with a high near 72. East northeast wind around 8 mph.

    High: 72 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Showers likely, mainly after 5am. Mostly cloudy, with a low around 52. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 52 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 2pm. High near 63. East wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    High: 63 °F

    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Low: 55 °F

    Showers
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50.

    Low: 50 °F

    Mostly Cloudy

  • Monday

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

    High: 61 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
Mostly cloudy, with a steady temperature around 70. East northeast wind around 6 mph.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 51. Northeast wind 3 to 5 mph.
Friday
Increasing clouds, with a high near 72. East northeast wind around 8 mph.
Friday Night
Showers likely, mainly after 5am. Mostly cloudy, with a low around 52. East wind 8 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Showers, with thunderstorms also possible after 2pm. High near 63. East wind around 10 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
A chance of showers before 2pm. Mostly cloudy, with a high near 61.
Monday Night
Mostly cloudy, with a low around 46.
Tuesday
Partly sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Partly sunny, with a high near 67.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Greenville MI
 43.18°N 85.26°W (Elev. 853 ft)
Last Update:
4:06 pm EDT Sep 17, 2026
Forecast Valid:
4pm EDT Sep 17, 2026-6pm EDT Sep 23, 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