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.

Light Rain

59°F

15°C

Humidity 100%
Wind Speed NE 6 mph
Barometer 30.26 in
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 17 Sep 3:15 am EDT
Extended Forecast for

Greenville MI

  • Overnight

    Overnight: A 30 percent chance of showers. Mostly cloudy, with a low around 57. East wind around 5 mph.

    Low: 57 °F

    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 73. East northeast wind around 7 mph.

    High: 73 °F

    Chance
    Showers then
    Mostly Cloudy

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 50. Northeast wind 3 to 5 mph.

    Low: 50 °F

    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 73. East northeast wind 7 to 9 mph, with gusts as high as 18 mph.

    High: 73 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Showers likely, mainly after 2am. Cloudy, with a low around 52. East wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.

    Low: 52 °F

    Slight Chance
    Showers then
    Showers
    Likely

  • Saturday

    Saturday: Showers. The rain could be heavy at times. High near 64. Chance of precipitation is 100%.

    High: 64 °F

    Heavy Rain

  • Saturday Night

    Saturday Night: Showers, mainly before 2am. Low around 55. Chance of precipitation is 80%.

    Low: 55 °F

    Showers

  • Sunday

    Sunday: A chance of showers before 2pm. Mostly cloudy, with a high near 66.

    High: 66 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 49.

    Low: 49 °F

    Mostly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers. Mostly cloudy, with a low around 57. East wind around 5 mph.
Thursday
A 30 percent chance of showers, mainly before 8am. Mostly cloudy, with a high near 73. East northeast wind around 7 mph.
Thursday Night
Partly cloudy, with a low around 50. Northeast wind 3 to 5 mph.
Friday
Increasing clouds, with a high near 73. East northeast wind 7 to 9 mph, with gusts as high as 18 mph.
Friday Night
Showers likely, mainly after 2am. Cloudy, with a low around 52. East wind 9 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 60%.
Saturday
Showers. The rain could be heavy at times. High near 64. Chance of precipitation is 100%.
Saturday Night
Showers, mainly before 2am. Low around 55. Chance of precipitation is 80%.
Sunday
A chance of showers before 2pm. Mostly cloudy, with a high near 66.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 62.
Monday Night
A chance of showers. Mostly cloudy, with a low around 47.
Tuesday
Partly sunny, with a high near 65.
Tuesday Night
Mostly cloudy, with a low around 51.
Wednesday
Partly sunny, with a high near 70.
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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:
3:03 am EDT Sep 17, 2026
Forecast Valid:
3am 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