Thunderstorms and Heavy Rainfall in the Plains; Hazardous Heat in the South and Southeast

Severe thunderstorms will be possible across the northern/central Plains through Tuesday afternoon and from the central Plains to the Mid-Mississippi Valley Tuesday evening through Wednesday morning. Storms may produce large hail and damaging wind gusts, and heavy rainfall may lead to scattered instances of flash flooding. Meanwhile, hazardous heat persists across the South and Southeast. Read More >

Current conditions at

Kalamazoo/Battle Creek International Airport (KAZO)

Lat: 42.23°NLon: 85.55°WElev: 863ft.

Fair

61°F

16°C

Humidity 97%
Wind Speed Calm
Barometer 30.02 in (1016.1 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 18 Aug 1:53 am EDT
Extended Forecast for

Portage MI

  • Overnight

    Overnight: Mostly clear, with a steady temperature around 59. Calm wind.

    Low: 59 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 80. Light west southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 80 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms, mainly between 2am and 5am.  Partly cloudy during the early evening, then becoming cloudy, with a low around 63. West southwest wind 5 to 8 mph, with gusts as high as 18 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A 10 percent chance of showers before 8am.  Mostly sunny, with a high near 78. Calm wind becoming north northwest around 5 mph in the afternoon.

    High: 78 °F

    Slight Chance
    Showers then
    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm  in the evening.

    Low: 54 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers after 2am.  Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy
    then Chance
    Showers

Detailed Forecast

Overnight
Mostly clear, with a steady temperature around 59. Calm wind.
Tuesday
Mostly sunny, with a high near 80. Light west southwest wind becoming west 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Tuesday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms, mainly between 2am and 5am. Partly cloudy during the early evening, then becoming cloudy, with a low around 63. West southwest wind 5 to 8 mph, with gusts as high as 18 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A 10 percent chance of showers before 8am. Mostly sunny, with a high near 78. Calm wind becoming north northwest around 5 mph in the afternoon.
Wednesday Night
Mostly clear, with a low around 54. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 55.
Friday
Mostly sunny, with a high near 79.
Friday Night
A chance of showers after 2am. Partly cloudy, with a low around 59.
Saturday
A chance of showers. Partly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly sunny, with a high near 77.
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ABOUT THIS FORECAST

 
Point Forecast:
Portage MI
 42.2°N 85.59°W (Elev. 860 ft)
2:21 am EDT Aug 18, 2026
2am EDT Aug 18, 2026-6pm EDT Aug 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database