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

Heat Persists in the South Central U.S. and California; Heavy Rain in the Ohio Valley

Sweltering heat remains across the South-Central Plains and Lower/Middle Mississippi Valley, as well as in the Southwest and California this week with limited nighttime relief. Heavy rainfall will lead to localized areas of flash flooding in parts of the Ohio Valley/Central Appalachians. Dry and breezy conditions will enhance fire weather concerns across the northern Rockies and High Plains. Read More >

Current conditions at

Ionia County Airport (KY70)

Lat: 42.94°NLon: 85.06°WElev: 818ft.

Fog

64°F

18°C

Humidity 100%
Wind Speed W 3 mph
Barometer 29.97 in
Dewpoint 64°F (18°C)
Visibility 0.15 mi
Last update 10 Sep 6:15 am EDT
Extended Forecast for

Portland MI

  • Today

    Today: Mostly cloudy, with a high near 77. West northwest wind 3 to 7 mph.

    High: 77 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58. Calm wind becoming south southeast around 6 mph in the evening.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 82. South wind 7 to 13 mph, with gusts as high as 23 mph.

    High: 82 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 57.

    Low: 57 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers between 8am and 2pm. Partly sunny, with a high near 81.

    High: 81 °F

    Chance
    Showers

Detailed Forecast

Today
Mostly cloudy, with a high near 77. West northwest wind 3 to 7 mph.
Tonight
Mostly clear, with a low around 51. Northwest wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 78. Calm wind becoming southeast around 5 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58. Calm wind becoming south southeast around 6 mph in the evening.
Saturday
Mostly sunny, with a high near 82. South wind 7 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Mostly cloudy, with a low around 57.
Monday
A chance of showers between 8am and 2pm. Partly sunny, with a high near 81.
Monday Night
A chance of showers after 8pm. Mostly cloudy, with a low around 65.
Tuesday
A chance of showers. Mostly cloudy, with a high near 75.
Tuesday Night
Mostly cloudy, with a low around 54.
Wednesday
Partly sunny, with a high near 72.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland MI
 42.88°N 84.9°W (Elev. 699 ft)
Last Update:
6:03 am EDT Sep 10, 2026
Forecast Valid:
6am EDT Sep 10, 2026-6pm EDT Sep 16, 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