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

Thunderstorms and Heavy Rains Across Portions of the Central and Eastern US; Heat Expands to Portions of the East

Widespread showers and thunderstorms, some severe, may produce heavy downpours and flash flooding across much of the eastern and central U.S. Dangerous heat will continue in the Pacific Northwest and expand across portions of the East. Deep tropical moisture and associated thunderstorms will bring heavy rainfall and localized flash flooding across portions of Florida into the central Gulf Coast. Read More >

Hazardous Weather Conditions

Current conditions at

Ortonville, Ortonville Muncipal-Martinson Field Airport (KVVV)

Lat: 45.31°NLon: 96.42°WElev: 1099ft.

Light Rain

63°F

17°C

Humidity 100%
Wind Speed Calm
Barometer 29.95 in
Dewpoint 63°F (17°C)
Visibility 7.00 mi
Last update 16 Jul 1:41 am CDT
Extended Forecast for

Big Stone City SD

  • Overnight

    Overnight: A chance of showers. Areas of smoke between 3am and 4am. Cloudy, with a low around 59. North wind around 14 mph. Chance of precipitation is 40%.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Showers and thunderstorms likely. Cloudy, with a high near 66. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers before 7pm. Mostly cloudy, with a low around 53. North northwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 53 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 72. North northwest wind around 6 mph becoming southeast in the afternoon.

    High: 72 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 57. Southeast wind around 6 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. South southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South southeast wind 5 to 8 mph becoming north northwest after midnight. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms

  • Saturday

    Saturday: Partly sunny, with a high near 78. North wind 6 to 8 mph.

    High: 78 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 60. North northeast wind 5 to 7 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers. Areas of smoke between 3am and 4am. Cloudy, with a low around 59. North wind around 14 mph. Chance of precipitation is 40%.
Wednesday
Showers and thunderstorms likely. Cloudy, with a high near 66. North wind around 14 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers before 7pm. Mostly cloudy, with a low around 53. North northwest wind 6 to 14 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Thursday
Sunny, with a high near 72. North northwest wind around 6 mph becoming southeast in the afternoon.
Thursday Night
Partly cloudy, with a low around 57. Southeast wind around 6 mph.
Friday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 76. South southeast wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South southeast wind 5 to 8 mph becoming north northwest after midnight. Chance of precipitation is 40%.
Saturday
Partly sunny, with a high near 78. North wind 6 to 8 mph.
Saturday Night
Partly cloudy, with a low around 60. North northeast wind 5 to 7 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 78.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 83. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Tuesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 85. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Big Stone City SD
 45.3°N 96.49°W (Elev. 1099 ft)
Last Update:
12:47 am CDT Jul 16, 2025
Forecast Valid:
1am CDT Jul 16, 2025-6pm CDT Jul 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