Heavy Rainfall and Severe Thunderstorm Threats; Heat Risk Expands; Monitoring the Tropics

Flash flooding risks continue for portions of the Four Corners and Great Basin through today. Severe thunderstorms are outlooked from the eastern Great Lakes, southern New England into the mid-Atlantic through Tuesday. Heat risk increases and expands across the center of the nation and across the Ohio Valley and mid-Atlantic this week. Continue to closely monitor tropical development in the Gulf. Read More >

Current conditions at

Mobridge, Mobridge Municipal Airport (KMBG)

Lat: 45.55°NLon: 100.41°WElev: 1713ft.

Fair

52°F

11°C

Humidity 93%
Wind Speed NW 3 mph
Barometer 29.88 in (1011.5 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 31 Aug 5:52 am CDT
Extended Forecast for

Eureka SD

  • Today

    Today: Sunny, with a high near 82. West southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.

    High: 82 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 53. West wind 5 to 11 mph.

    Low: 53 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: A slight chance of showers before 4pm, then a slight chance of showers after 5pm.  Mostly cloudy, with a high near 79. Light and variable wind becoming east 5 to 8 mph in the morning.  Chance of precipitation is 20%.

    High: 79 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers, mainly between 7pm and 1am.  Mostly cloudy, with a low around 55. East southeast wind 7 to 9 mph.  Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Wednesday

    Wednesday: Mostly sunny, with a high near 84. Southeast wind 9 to 17 mph, with gusts as high as 25 mph.

    High: 84 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of showers and thunderstorms.  Partly cloudy, with a low around 61. Breezy, with an east southeast wind 16 to 21 mph.  Chance of precipitation is 20%.

    Low: 61 °F

    Slight Chance
    T-storms and
    Breezy

  • Thursday

    Thursday: Mostly sunny, with a high near 88. East southeast wind 13 to 15 mph becoming south in the afternoon.

    High: 88 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62. East southeast wind 9 to 11 mph.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 92. Breezy, with a south southeast wind 13 to 20 mph, with gusts as high as 28 mph.

    High: 92 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 82. West southwest wind 6 to 11 mph increasing to 12 to 17 mph in the afternoon. Winds could gust as high as 25 mph.
Tonight
Increasing clouds, with a low around 53. West wind 5 to 11 mph.
Tuesday
A slight chance of showers before 4pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 79. Light and variable wind becoming east 5 to 8 mph in the morning. Chance of precipitation is 20%.
Tuesday Night
A chance of showers, mainly between 7pm and 1am. Mostly cloudy, with a low around 55. East southeast wind 7 to 9 mph. Chance of precipitation is 30%.
Wednesday
Mostly sunny, with a high near 84. Southeast wind 9 to 17 mph, with gusts as high as 25 mph.
Wednesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61. Breezy, with an east southeast wind 16 to 21 mph. Chance of precipitation is 20%.
Thursday
Mostly sunny, with a high near 88. East southeast wind 13 to 15 mph becoming south in the afternoon.
Thursday Night
Mostly clear, with a low around 62. East southeast wind 9 to 11 mph.
Friday
Sunny and hot, with a high near 92. Breezy, with a south southeast wind 13 to 20 mph, with gusts as high as 28 mph.
Friday Night
Mostly clear, with a low around 66.
Saturday
Mostly sunny, with a high near 89.
Saturday Night
Partly cloudy, with a low around 63.
Sunday
Mostly sunny, with a high near 85.
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ABOUT THIS FORECAST

 
Point Forecast:
Eureka SD
 45.76°N 99.63°W (Elev. 1883 ft)
6:06 am CDT Aug 31, 2026
6am CDT Aug 31, 2026-6pm CDT Sep 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database