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

Chamberlain, Chamberlain Municipal Airport (K9V9)

Lat: 43.77°NLon: 99.32°WElev: 1693ft.

Overcast

50°F

10°C

Humidity 97%
Wind Speed E 3 mph
Barometer 29.76 in
Dewpoint 49°F (9°C)
Visibility 7.00 mi
Last update 12 Oct 2:35 am CDT
Extended Forecast for

Stephan SD

  • Overnight

    Overnight: Cloudy, with a low around 45. North northeast wind around 17 mph, with gusts as high as 25 mph.

    Low: 45 °F

    Cloudy

  • Columbus Day

    Columbus Day: Cloudy, with a high near 61. Northeast wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 61 °F

    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 41. North northwest wind 11 to 15 mph.

    Low: 41 °F

    Decreasing
    Clouds

  • Tuesday

    Tuesday: Partly sunny, with a high near 55. North northwest wind 8 to 10 mph.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39. North wind around 8 mph.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 60. North northeast wind 6 to 8 mph.

    High: 60 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Showers likely, mainly after 1am.  Mostly cloudy, with a low around 42. East northeast wind around 6 mph.  Chance of precipitation is 60%.

    Low: 42 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday

    Thursday: A slight chance of showers before 1pm.  Partly sunny, with a high near 61. Breezy, with a northwest wind 7 to 12 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 36 mph.  Chance of precipitation is 20%.

    High: 61 °F

    Slight Chance
    Showers and
    Breezy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 37. Breezy, with a north northwest wind 18 to 22 mph, with gusts as high as 33 mph.

    Low: 37 °F

    Mostly Clear
    and Breezy

Detailed Forecast

Overnight
Cloudy, with a low around 45. North northeast wind around 17 mph, with gusts as high as 25 mph.
Columbus Day
Cloudy, with a high near 61. Northeast wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Monday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 41. North northwest wind 11 to 15 mph.
Tuesday
Partly sunny, with a high near 55. North northwest wind 8 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 39. North wind around 8 mph.
Wednesday
Sunny, with a high near 60. North northeast wind 6 to 8 mph.
Wednesday Night
Showers likely, mainly after 1am. Mostly cloudy, with a low around 42. East northeast wind around 6 mph. Chance of precipitation is 60%.
Thursday
A slight chance of showers before 1pm. Partly sunny, with a high near 61. Breezy, with a northwest wind 7 to 12 mph increasing to 21 to 26 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 37. Breezy, with a north northwest wind 18 to 22 mph, with gusts as high as 33 mph.
Friday
Sunny, with a high near 55.
Friday Night
Areas of frost. Otherwise, clear, with a low around 36.
Saturday
Sunny, with a high near 68.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
Stephan SD
 44.25°N 99.47°W (Elev. 1867 ft)
2:21 am CDT Oct 12, 2026
2am CDT Oct 12, 2026-6pm CDT Oct 18, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database