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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Hettinger, Hettinger Municipal Airport (KHEI)

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

Mostly Cloudy and Breezy

48°F

9°C

Humidity 80%
Wind Speed N 21 G 31 mph
Barometer 29.73 in (1005.8 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 10 Oct 11:53 pm MDT
Extended Forecast for

Bison SD

  • Overnight

    Overnight: Mostly cloudy, with a low around 43. North wind around 15 mph, with gusts as high as 26 mph.

    Low: 43 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of showers. Cloudy, with a high near 55. Northeast wind around 14 mph, with gusts as high as 24 mph.

    High: 55 °F

    Slight Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers, mainly after midnight. Cloudy, with a low around 39. Northeast wind 10 to 14 mph, with gusts as high as 24 mph.

    Low: 39 °F

    Slight Chance
    Showers then
    Chance
    Showers

  • Columbus Day

    Columbus Day: A 30 percent chance of showers, mainly before noon. Cloudy, with a high near 52. East wind 7 to 11 mph becoming north in the afternoon. Winds could gust as high as 23 mph.

    High: 52 °F

    Chance
    Showers

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. Northwest wind 5 to 11 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain before noon. Mostly cloudy, with a high near 53. Light north wind.

    High: 53 °F

    Chance Rain
    then Partly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A slight chance of rain after noon. Mostly sunny, with a high near 57.

    High: 57 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain. Mostly cloudy, with a low around 40.

    Low: 40 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 43. North wind around 15 mph, with gusts as high as 26 mph.
Sunday
A 20 percent chance of showers. Cloudy, with a high near 55. Northeast wind around 14 mph, with gusts as high as 24 mph.
Sunday Night
A 50 percent chance of showers, mainly after midnight. Cloudy, with a low around 39. Northeast wind 10 to 14 mph, with gusts as high as 24 mph.
Columbus Day
A 30 percent chance of showers, mainly before noon. Cloudy, with a high near 52. East wind 7 to 11 mph becoming north in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly cloudy, with a low around 37. Northwest wind 5 to 11 mph, with gusts as high as 23 mph.
Tuesday
A 30 percent chance of rain before noon. Mostly cloudy, with a high near 53. Light north wind.
Tuesday Night
Mostly cloudy, with a low around 37.
Wednesday
A slight chance of rain after noon. Mostly sunny, with a high near 57.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 40.
Thursday
A slight chance of rain before noon. Partly sunny, with a high near 57. Breezy.
Thursday Night
Partly cloudy, with a low around 34. Breezy.
Friday
Sunny, with a high near 53.
Friday Night
Mostly clear, with a low around 33.
Saturday
Sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Bison SD
 45.52°N 102.48°W (Elev. 2799 ft)
Last Update:
12:31 am MDT Oct 11, 2026
Forecast Valid:
12am MDT Oct 11, 2026-6pm MDT Oct 17, 2026
 
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