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

Ellsworth Air Force Base (KRCA)

Lat: 44.15°NLon: 103.1°WElev: 3278ft.

Overcast

50°F

10°C

Humidity 69%
Wind Speed N 14 mph
Barometer 29.79 in (1006.8 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill45°F (7°C)
Last update 11 Oct 4:55 am MDT
Extended Forecast for

Box Elder SD

  • Today

    Today: Mostly cloudy, with a high near 64. North wind 9 to 13 mph, with gusts as high as 26 mph.

    High: 64 °F

    Mostly Cloudy

  • Tonight

    Tonight: A 40 percent chance of showers.  Mostly cloudy, with a low around 46. Northeast wind 6 to 9 mph becoming southeast after midnight. Winds could gust as high as 18 mph.

    Low: 46 °F

    Chance
    Showers

  • Columbus Day

    Columbus Day: Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a southeast wind 6 to 11 mph becoming north 15 to 20 mph in the afternoon. Winds could gust as high as 37 mph.

    High: 59 °F

    Mostly Cloudy
    then Mostly
    Sunny and
    Breezy

  • Monday Night

    Monday Night: A 30 percent chance of rain, mainly after midnight.  Mostly cloudy, with a low around 40. Breezy, with a north wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 37 mph.

    Low: 40 °F

    Chance Rain
    and Breezy

  • Tuesday

    Tuesday: A 40 percent chance of rain, mainly before noon.  Partly sunny, with a high near 57. Light and variable wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 17 mph.

    High: 57 °F

    Chance Rain

  • Tuesday Night

    Tuesday Night: A 30 percent chance of rain, mainly after midnight.  Mostly cloudy, with a low around 41. East wind around 5 mph becoming light and variable  in the evening. Winds could gust as high as 15 mph.

    Low: 41 °F

    Chance Rain

  • Wednesday

    Wednesday: A 50 percent chance of rain.  Mostly cloudy, with a high near 57.

    High: 57 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before midnight.  Mostly cloudy, with a low around 42.

    Low: 42 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain before noon.  Partly sunny, with a high near 59. Breezy.

    High: 59 °F

    Breezy.
    Chance Rain
    then Mostly
    Sunny

Detailed Forecast

Today
Mostly cloudy, with a high near 64. North wind 9 to 13 mph, with gusts as high as 26 mph.
Tonight
A 40 percent chance of showers. Mostly cloudy, with a low around 46. Northeast wind 6 to 9 mph becoming southeast after midnight. Winds could gust as high as 18 mph.
Columbus Day
Cloudy, then gradually becoming mostly sunny, with a high near 59. Breezy, with a southeast wind 6 to 11 mph becoming north 15 to 20 mph in the afternoon. Winds could gust as high as 37 mph.
Monday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 40. Breezy, with a north wind 15 to 20 mph decreasing to 5 to 10 mph after midnight. Winds could gust as high as 37 mph.
Tuesday
A 40 percent chance of rain, mainly before noon. Partly sunny, with a high near 57. Light and variable wind becoming southeast around 6 mph in the afternoon. Winds could gust as high as 17 mph.
Tuesday Night
A 30 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 41. East wind around 5 mph becoming light and variable in the evening. Winds could gust as high as 15 mph.
Wednesday
A 50 percent chance of rain. Mostly cloudy, with a high near 57.
Wednesday Night
Rain likely, mainly before midnight. Mostly cloudy, with a low around 42.
Thursday
A chance of rain before noon. Partly sunny, with a high near 59. Breezy.
Thursday Night
A slight chance of rain before midnight. Partly cloudy, with a low around 37. Breezy.
Friday
Sunny, with a high near 57.
Friday Night
Mostly clear, with a low around 36.
Saturday
Sunny, with a high near 68.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Box Elder SD
 44.1°N 103.09°W (Elev. 3104 ft)
4:46 am MDT Oct 11, 2026
5am MDT Oct 11, 2026-6pm MDT Oct 17, 2026
 
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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