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

Extreme Heat Across the Southern U.S.; Severe Thunderstorms and Heavy Rain in the Plains and Mississippi Valley

A heat wave over the Southwest will intensify late week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Severe thunderstorms and heavy rain are expected over portions of the Plains and Mississippi Valley tonight, which will shift to parts of the Upper Midwest and mid-Mississippi Valley Friday. Monsoonal showers and flooding persist in the Desert Southwest. Read More >

Hazardous Weather Conditions

Current conditions at

Mobridge, Mobridge Municipal Airport (KMBG)

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

Light Rain

70°F

21°C

Humidity 97%
Wind Speed Calm
Barometer 29.93 in (1012.4 mb)
Dewpoint 69°F (21°C)
Visibility 8.00 mi
Last update 30 Jul 10:52 pm CDT
Extended Forecast for

Glenham SD

  • Tonight

    Tonight: Showers and thunderstorms likely before 4am, then a slight chance of showers. Patchy smoke before 4am. Mostly cloudy, with a low around 62. Light north wind increasing to 9 to 14 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 87. North northeast wind 11 to 14 mph, with gusts as high as 23 mph.

    High: 87 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58. Northeast wind 5 to 11 mph becoming southeast after midnight.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 90. Light south southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 23 mph.

    High: 90 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. South wind 15 to 17 mph, with gusts as high as 28 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 95. Breezy, with a south wind 18 to 26 mph, with gusts as high as 36 mph.

    High: 95 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 68. Breezy, with a south southeast wind 21 to 25 mph, with gusts as high as 38 mph.

    Low: 68 °F

    Partly Cloudy
    and Breezy

  • Monday

    Monday: Mostly sunny and hot, with a high near 91. Breezy, with a south southeast wind around 21 mph becoming north in the afternoon. Winds could gust as high as 31 mph.

    High: 91 °F

    Hot and
    Breezy

  • Monday Night

    Monday Night: A slight chance of showers and thunderstorms. Partly cloudy, with a low around 56. Breezy, with a north wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.

    Low: 56 °F

    Slight Chance
    T-storms and
    Breezy

Detailed Forecast

Tonight
Showers and thunderstorms likely before 4am, then a slight chance of showers. Patchy smoke before 4am. Mostly cloudy, with a low around 62. Light north wind increasing to 9 to 14 mph after midnight. Winds could gust as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 87. North northeast wind 11 to 14 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 58. Northeast wind 5 to 11 mph becoming southeast after midnight.
Saturday
Sunny and hot, with a high near 90. Light south southeast wind becoming south 10 to 15 mph in the morning. Winds could gust as high as 23 mph.
Saturday Night
Mostly clear, with a low around 63. South wind 15 to 17 mph, with gusts as high as 28 mph.
Sunday
Sunny and hot, with a high near 95. Breezy, with a south wind 18 to 26 mph, with gusts as high as 36 mph.
Sunday Night
Partly cloudy, with a low around 68. Breezy, with a south southeast wind 21 to 25 mph, with gusts as high as 38 mph.
Monday
Mostly sunny and hot, with a high near 91. Breezy, with a south southeast wind around 21 mph becoming north in the afternoon. Winds could gust as high as 31 mph.
Monday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 56. Breezy, with a north wind 14 to 23 mph, with gusts as high as 32 mph. Chance of precipitation is 20%.
Tuesday
Mostly sunny, with a high near 79.
Tuesday Night
Mostly clear, with a low around 54.
Wednesday
Mostly sunny, with a high near 84.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Thursday
A slight chance of showers. Mostly sunny, with a high near 88. Chance of precipitation is 20%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Glenham SD
 45.53°N 100.26°W (Elev. 1722 ft)
Last Update:
11:11 pm CDT Jul 30, 2026
Forecast Valid:
11pm CDT Jul 30, 2026-6pm CDT Aug 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation