Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation

Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >

Current conditions at

Ionia County Airport (KY70)

Lat: 42.94°NLon: 85.06°WElev: 818ft.

Overcast

70°F

21°C

Humidity 88%
Wind Speed S 7 mph
Barometer 30.08 in
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Last update 29 Aug 9:56 pm EDT
Extended Forecast for

Portland MI

  • Tonight

    Tonight: A 30 percent chance of showers, mainly after 2am.  Mostly cloudy, with a steady temperature around 69. South wind 5 to 7 mph.

    Low: 69 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm, then a slight chance of showers and thunderstorms after 5pm.  Cloudy, then gradually becoming mostly sunny, with a high near 84. South southwest wind 9 to 13 mph, with gusts as high as 24 mph.  Chance of precipitation is 50%.

    High: 84 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms, mainly between 3am and 5am.  Mostly cloudy, with a low around 68. Southwest wind around 6 mph.

    Low: 68 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm.  Partly sunny, with a high near 88. South southwest wind 7 to 10 mph, with gusts as high as 21 mph.  Chance of precipitation is 20%.

    High: 88 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 72. South southwest wind around 8 mph.

    Low: 72 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Tuesday

    Tuesday: Partly sunny and hot, with a high near 91.

    High: 91 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 71.

    Low: 71 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Wednesday Night

    Wednesday Night: A chance of showers after 8pm.  Partly cloudy, with a low around 67.

    Low: 67 °F

    Chance
    Showers

Detailed Forecast

Tonight
A 30 percent chance of showers, mainly after 2am. Mostly cloudy, with a steady temperature around 69. South wind 5 to 7 mph.
Sunday
A chance of showers and thunderstorms before 4pm, then a slight chance of showers between 4pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Cloudy, then gradually becoming mostly sunny, with a high near 84. South southwest wind 9 to 13 mph, with gusts as high as 24 mph. Chance of precipitation is 50%.
Sunday Night
A 20 percent chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 68. Southwest wind around 6 mph.
Monday
A slight chance of showers and thunderstorms before 11am, then a slight chance of showers between 11am and 2pm. Partly sunny, with a high near 88. South southwest wind 7 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Monday Night
A 20 percent chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 72. South southwest wind around 8 mph.
Tuesday
Partly sunny and hot, with a high near 91.
Tuesday Night
Mostly cloudy, with a low around 71.
Wednesday
Mostly sunny and hot, with a high near 92.
Wednesday Night
A chance of showers after 8pm. Partly cloudy, with a low around 67.
Thursday
Mostly sunny, with a high near 85.
Thursday Night
Partly cloudy, with a low around 63.
Friday
Mostly sunny, with a high near 84.
Friday Night
Partly cloudy, with a low around 62.
Saturday
Mostly sunny, with a high near 84.
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ABOUT THIS FORECAST

 
Point Forecast:
Portland MI
 42.88°N 84.9°W (Elev. 699 ft)
10:03 pm EDT Aug 29, 2026
10pm EDT Aug 29, 2026-6pm EDT Sep 5, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database