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

Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

Brainerd - Crow Wing County Airport (KBRD)

Lat: 46.4°NLon: 94.13°WElev: 1220ft.

Fair

56°F

13°C

Humidity 87%
Wind Speed Calm
Barometer 29.99 in (1015.4 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 19 Aug 11:53 pm CDT
Extended Forecast for

Riverton MN

  • Overnight

    Overnight: A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 54. Calm wind becoming south around 5 mph.

    Low: 54 °F

    Slight Chance
    T-storms

  • Thursday

    Thursday: Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Northwest wind around 5 mph, with gusts as high as 15 mph.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.

    Low: 56 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77. North wind 5 to 10 mph, with gusts as high as 20 mph.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50. North wind around 5 mph becoming calm in the evening.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 78. Calm wind becoming east around 5 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54. Southeast wind around 5 mph.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 10 percent chance of showers and thunderstorms after 5am. Mostly cloudy, with a low around 54. Calm wind becoming south around 5 mph.
Thursday
Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, then gradually becoming sunny, with a high near 81. South wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 56. West wind around 5 mph becoming calm in the evening.
Friday
Mostly sunny, with a high near 80. Northwest wind around 5 mph, with gusts as high as 15 mph.
Friday Night
Partly cloudy, with a low around 56. Northwest wind around 5 mph becoming calm in the evening.
Saturday
Sunny, with a high near 77. North wind 5 to 10 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 50. North wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 78. Calm wind becoming east around 5 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 54. Southeast wind around 5 mph.
Monday
A slight chance of showers after 1pm. Mostly sunny, with a high near 82. South wind 5 to 10 mph.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 60. Southwest wind around 5 mph.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 83. Northwest wind 5 to 10 mph, with gusts as high as 15 mph.
Tuesday Night
Partly cloudy, with a low around 58. Northwest wind around 5 mph becoming calm after midnight.
Wednesday
Mostly sunny, with a high near 82. Northeast wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Riverton MN
 46.47°N 94.05°W
Last Update:
11:52 pm CDT Aug 19, 2026
Forecast Valid:
12am CDT Aug 20, 2026-6pm CDT Aug 26, 2026
 
Forecast Discussion
 
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Additional Resources

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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