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

Extreme Heat and Excessive Rainfall Today

Dangerous and extreme heat will remain across portions of the southern U.S. through the weekend. A heat wave over the Southwest U.S. will intensify this week, peaking and expanding into the Intermountain West and northern High Plains this weekend. Multiple rounds of thunderstorms will produce heavy to excessive rainfall with significant flash flooding across portions of southern New England. Read More >

Current conditions at

Hettinger, Hettinger Municipal Airport (KHEI)

Lat: 46.01°NLon: 102.65°WElev: 2703ft.

Fair

76°F

24°C

Humidity 52%
Wind Speed E 14 mph
Barometer 29.89 in (1009.4 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 29 Jul 9:53 pm MDT
Extended Forecast for

13 Miles NNE Lemmon SD

  • Tonight

    Tonight: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 63. Southeast wind 12 to 17 mph becoming northeast 5 to 10 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms, mainly between 7am and 4pm. Mostly cloudy, with a high near 85. Light and variable wind becoming north 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Northeast wind 8 to 13 mph becoming light northwest after midnight. Winds could gust as high as 22 mph.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Sunny and hot, with a high near 90. Calm wind becoming southeast 5 to 9 mph in the morning.

    High: 90 °F

    Hot

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. Southeast wind around 9 mph.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny and hot, with a high near 97. South wind 8 to 17 mph, with gusts as high as 26 mph.

    High: 97 °F

    Hot

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 63. South wind 16 to 18 mph, with gusts as high as 29 mph.

    Low: 63 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 101. Breezy, with a south wind 18 to 24 mph, with gusts as high as 34 mph.

    High: 101 °F

    Hot and
    Breezy

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms after midnight. Mostly clear, with a low around 62. Breezy, with a south wind 14 to 23 mph becoming north after midnight. Winds could gust as high as 31 mph.

    Low: 62 °F

    Breezy.
    Mostly Clear
    then Chance
    Showers

Detailed Forecast

Tonight
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 63. Southeast wind 12 to 17 mph becoming northeast 5 to 10 mph after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%.
Thursday
Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms, mainly between 7am and 4pm. Mostly cloudy, with a high near 85. Light and variable wind becoming north 8 to 13 mph in the morning. Winds could gust as high as 22 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Thursday Night
Mostly clear, with a low around 57. Northeast wind 8 to 13 mph becoming light northwest after midnight. Winds could gust as high as 22 mph.
Friday
Sunny and hot, with a high near 90. Calm wind becoming southeast 5 to 9 mph in the morning.
Friday Night
Partly cloudy, with a low around 59. Southeast wind around 9 mph.
Saturday
Sunny and hot, with a high near 97. South wind 8 to 17 mph, with gusts as high as 26 mph.
Saturday Night
Mostly clear, with a low around 63. South wind 16 to 18 mph, with gusts as high as 29 mph.
Sunday
Sunny and hot, with a high near 101. Breezy, with a south wind 18 to 24 mph, with gusts as high as 34 mph.
Sunday Night
A chance of showers and thunderstorms after midnight. Mostly clear, with a low around 62. Breezy, with a south wind 14 to 23 mph becoming north after midnight. Winds could gust as high as 31 mph.
Monday
Mostly sunny, with a high near 85. Windy, with a north wind 26 to 33 mph, with gusts as high as 41 mph.
Monday Night
Mostly clear, with a low around 51. Windy, with a north wind 16 to 26 mph decreasing to 6 to 16 mph after midnight. Winds could gust as high as 36 mph.
Tuesday
Mostly sunny, with a high near 80. Light north wind increasing to 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 54. North wind 5 to 8 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 85.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles NNE Lemmon SD
 46.11°N 102.1°W
Last Update:
9:36 pm MDT Jul 29, 2026
Forecast Valid:
10pm MDT Jul 29, 2026-6pm MDT Aug 5, 2026
 
Forecast Discussion
 
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Additional Resources

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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