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

Hazardous Weather Conditions

Current conditions at

Ionia County Airport (KY70)

Lat: 42.94°NLon: 85.06°WElev: 818ft.

Fair

88°F

31°C

Humidity 62%
Wind Speed Vrbl 2 mph
Barometer 30.08 in
Dewpoint 73°F (23°C)
Visibility 10.00 mi
Heat Index96°F (36°C)
Last update 16 Aug 1:35 pm EDT
Extended Forecast for

Portland MI

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 97. Southwest wind around 8 mph.

    High: 90 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 3am. Increasing clouds, with a low around 69. West southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Slight Chance
    T-storms then
    Showers
    Likely

  • Sunday

    Sunday: A 20 percent chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 78. North northwest wind 6 to 10 mph becoming northeast in the afternoon.

    High: 78 °F

    Slight Chance
    T-storms

  • Sunday Night

    Sunday Night: A 20 percent chance of showers after 2am. Partly cloudy, with a low around 58. East northeast wind 6 to 10 mph, with gusts as high as 18 mph.

    Low: 58 °F

    Partly Cloudy
    then Slight
    Chance
    Showers

  • Monday

    Monday: A 40 percent chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 85. South southeast wind 6 to 8 mph.

    High: 85 °F

    Chance
    Showers then
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.

    Low: 67 °F

    Chance
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.

    High: 84 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 62.

    Low: 62 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 78.

    High: 78 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Heat index values as high as 97. Southwest wind around 8 mph.
Tonight
Showers and thunderstorms likely, mainly before 3am. Increasing clouds, with a low around 69. West southwest wind around 6 mph becoming northwest after midnight. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday
A 20 percent chance of showers and thunderstorms after 11am. Mostly cloudy, with a high near 78. North northwest wind 6 to 10 mph becoming northeast in the afternoon.
Sunday Night
A 20 percent chance of showers after 2am. Partly cloudy, with a low around 58. East northeast wind 6 to 10 mph, with gusts as high as 18 mph.
Monday
A 40 percent chance of showers and thunderstorms, mainly after 8am. Partly sunny, with a high near 85. South southeast wind 6 to 8 mph.
Monday Night
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Tuesday
Showers likely, with thunderstorms also possible after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 60%.
Tuesday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 62.
Wednesday
Partly sunny, with a high near 78.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 81.
Thursday Night
Mostly clear, with a low around 57.
Friday
Sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Portland MI
 42.88°N 84.9°W (Elev. 699 ft)
Last Update:
1:03 pm EDT Aug 16, 2025
Forecast Valid:
1pm EDT Aug 16, 2025-6pm EDT Aug 22, 2025
 
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