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 Drizzle Fog/Mist

59°F

15°C

Humidity 100%
Wind Speed E 5 mph
Barometer 30.27 in
Dewpoint 59°F (15°C)
Visibility 5.00 mi
Last update 17 Sep 11:15 am EDT
Extended Forecast for

Portland MI

  • Today

    Today: A 20 percent chance of showers. Cloudy, with a high near 74. Northeast wind around 6 mph.

    High: 74 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. Northeast wind around 5 mph.

    Low: 51 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 75. East northeast wind 6 to 9 mph.

    High: 75 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A 50 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 54. East northeast wind 7 to 11 mph, with gusts as high as 22 mph.

    Low: 54 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 2pm. High near 67. Southeast wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.

    High: 67 °F

    Showers

  • Saturday Night

    Saturday Night: Showers, with thunderstorms also possible after 8pm. Low around 57. Chance of precipitation is 90%.

    Low: 57 °F

    Showers

  • Sunday

    Sunday: Showers likely, mainly before 8am. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.

    High: 67 °F

    Showers
    Likely

  • Sunday Night

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

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers after 2pm. Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy
    then Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers. Cloudy, with a high near 74. Northeast wind around 6 mph.
Tonight
Mostly cloudy, with a low around 51. Northeast wind around 5 mph.
Friday
Mostly sunny, with a high near 75. East northeast wind 6 to 9 mph.
Friday Night
A 50 percent chance of showers, mainly after 2am. Mostly cloudy, with a low around 54. East northeast wind 7 to 11 mph, with gusts as high as 22 mph.
Saturday
Showers, with thunderstorms also possible after 2pm. High near 67. Southeast wind 8 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 100%.
Saturday Night
Showers, with thunderstorms also possible after 8pm. Low around 57. Chance of precipitation is 90%.
Sunday
Showers likely, mainly before 8am. Mostly cloudy, with a high near 67. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 50.
Monday
A chance of showers after 2pm. Mostly cloudy, with a high near 63.
Monday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 48.
Tuesday
Partly sunny, with a high near 67.
Tuesday Night
Mostly cloudy, with a low around 52.
Wednesday
Partly sunny, with a high near 72.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland MI
 42.86°N 84.91°W (Elev. 748 ft)
Last Update:
11:03 am EDT Sep 17, 2026
Forecast Valid:
11am 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