Heavy Rainfall Threat Continues in the Southwest on Monday; Record Warmth in the Plains and Midwest

Remnant moisture from Tropical Storm Rachel will persist over portions of the Great Basin and Southwest on Monday, bringing a potential heavy to excessive rainfall risk. Well above average and potentially record breaking temperatures will develop across the Plains and Midwest early this week, spreading into the Lower Mississippi Valley and Southeast midweek. Read More >

Current conditions at

Spearfish / Clyde Ice (KSPF)

Lat: 44.48°NLon: 103.78°WElev: 3898ft.

Overcast

48°F

9°C

Humidity 100%
Wind Speed NW 6 mph
Barometer 29.73 in
Dewpoint 48°F (9°C)
Visibility 7.00 mi
Wind Chill45°F (7°C)
Last update 12 Oct 1:35 am MDT
Extended Forecast for

2 Miles SE Saint Onge SD

  • Overnight

    Overnight: A 30 percent chance of rain before 3am.  Areas of fog.  Otherwise, cloudy, with a low around 46. East wind 11 to 17 mph, with gusts as high as 31 mph.

    Low: 46 °F

    Chance Rain
    and Areas Fog

  • Columbus Day

    Columbus Day: A slight chance of showers between 9am and noon.  Areas of fog before noon.  Otherwise, cloudy, with a high near 53. Northwest wind 5 to 10 mph increasing to 13 to 18 mph in the morning. Winds could gust as high as 28 mph.  Chance of precipitation is 20%.

    High: 53 °F

    Slight Chance
    Showers and
    Areas Fog
    then Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of rain, mainly after midnight.  Mostly cloudy, with a low around 36. Northwest wind 6 to 11 mph becoming light  in the evening. Winds could gust as high as 21 mph.

    Low: 36 °F

    Slight Chance
    Rain then
    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly before noon.  Mostly cloudy, with a high near 46. Calm wind becoming east around 5 mph.  Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A 20 percent chance of rain.  Mostly cloudy, with a low around 39. Northwest wind around 5 mph becoming calm  after midnight.

    Low: 39 °F

    Slight Chance
    Rain

  • Wednesday

    Wednesday: A 20 percent chance of rain after noon.  Partly sunny, with a high near 54. Calm wind becoming northeast around 6 mph in the morning.

    High: 54 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Thursday

    Thursday: A slight chance of rain before noon.  Mostly sunny, with a high near 54. Breezy.

    High: 54 °F

    Breezy.
    Slight Chance
    Rain then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 32. Breezy.

    Low: 32 °F

    Mostly Clear
    and Breezy
    then Mostly
    Clear

Detailed Forecast

Overnight
A 30 percent chance of rain before 3am. Areas of fog. Otherwise, cloudy, with a low around 46. East wind 11 to 17 mph, with gusts as high as 31 mph.
Columbus Day
A slight chance of showers between 9am and noon. Areas of fog before noon. Otherwise, cloudy, with a high near 53. Northwest wind 5 to 10 mph increasing to 13 to 18 mph in the morning. Winds could gust as high as 28 mph. Chance of precipitation is 20%.
Monday Night
A 50 percent chance of rain, mainly after midnight. Mostly cloudy, with a low around 36. Northwest wind 6 to 11 mph becoming light in the evening. Winds could gust as high as 21 mph.
Tuesday
Rain likely, mainly before noon. Mostly cloudy, with a high near 46. Calm wind becoming east around 5 mph. Chance of precipitation is 60%.
Tuesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 39. Northwest wind around 5 mph becoming calm after midnight.
Wednesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 54. Calm wind becoming northeast around 6 mph in the morning.
Wednesday Night
A 50 percent chance of rain. Mostly cloudy, with a low around 41.
Thursday
A slight chance of rain before noon. Mostly sunny, with a high near 54. Breezy.
Thursday Night
Mostly clear, with a low around 32. Breezy.
Friday
Sunny, with a high near 60.
Friday Night
Clear, with a low around 41.
Saturday
Sunny, with a high near 73.
Saturday Night
Clear, with a low around 48.
Sunday
Sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
2 Miles SE Saint Onge SD
 44.55°N 103.73°W (Elev. 3442 ft)
1:01 am MDT Oct 12, 2026
1am MDT Oct 12, 2026-6pm MDT Oct 18, 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