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

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 >

Hazardous Weather Conditions

Current conditions at

Buffalo (K2WX)

Lat: 45.6°NLon: 103.55°WElev: 3002ft.

41°F

5°C

Humidity 100%
Wind Speed N 10 mph
Barometer 29.84 in (1011.9 mb)
Dewpoint 41°F (5°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 12 Oct 7:56 am MDT
Extended Forecast for

Buffalo SDSimilar City Names

  • Columbus Day

    Columbus Day: Areas of drizzle with a chance of showers before 9am, then a chance of showers between 9am and noon. Areas of fog before noon. Otherwise, cloudy, with a high near 46. Northeast wind 6 to 11 mph becoming northwest 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%.

    High: 46 °F

    Chance
    Showers and
    Areas Fog
    then Cloudy

  • Tonight

    Tonight: A 20 percent chance of rain after midnight. Cloudy, with a low around 35. Northwest wind 10 to 15 mph becoming light north after midnight. Winds could gust as high as 24 mph.

    Low: 35 °F

    Cloudy then
    Slight Chance
    Rain

  • Tuesday

    Tuesday: A chance of rain and snow before 8am, then a chance of rain between 8am and 3pm. Mostly cloudy, with a high near 48. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 48 °F

    Chance
    Rain/Snow
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. Northwest wind 3 to 6 mph.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 58. Calm wind becoming south around 6 mph in the afternoon. Winds could gust as high as 15 mph.

    High: 58 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 38. Southeast wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph.

    Low: 38 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 57. Windy.

    High: 57 °F

    Sunny and
    Windy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 29. Blustery.

    Low: 29 °F

    Mostly Clear
    and Blustery
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 59. Breezy.

    High: 59 °F

    Sunny then
    Sunny and
    Breezy

Detailed Forecast

Columbus Day
Areas of drizzle with a chance of showers before 9am, then a chance of showers between 9am and noon. Areas of fog before noon. Otherwise, cloudy, with a high near 46. Northeast wind 6 to 11 mph becoming northwest 12 to 17 mph in the afternoon. Winds could gust as high as 30 mph. Chance of precipitation is 40%.
Tonight
A 20 percent chance of rain after midnight. Cloudy, with a low around 35. Northwest wind 10 to 15 mph becoming light north after midnight. Winds could gust as high as 24 mph.
Tuesday
A chance of rain and snow before 8am, then a chance of rain between 8am and 3pm. Mostly cloudy, with a high near 48. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. Little or no snow accumulation expected.
Tuesday Night
Partly cloudy, with a low around 34. Northwest wind 3 to 6 mph.
Wednesday
Mostly sunny, with a high near 58. Calm wind becoming south around 6 mph in the afternoon. Winds could gust as high as 15 mph.
Wednesday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 38. Southeast wind 6 to 13 mph becoming northwest after midnight. Winds could gust as high as 21 mph.
Thursday
Sunny, with a high near 57. Windy.
Thursday Night
Mostly clear, with a low around 29. Blustery.
Friday
Sunny, with a high near 59. Breezy.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 74.
Saturday Night
Mostly clear, with a low around 43.
Sunday
Sunny, with a high near 71.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Buffalo SDSimilar City Names
 45.58°N 103.55°W (Elev. 2897 ft)
Last Update:
6:21 am MDT Oct 12, 2026
Forecast Valid:
8am MDT Oct 12, 2026-6pm MDT Oct 18, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation