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

Hurricane and Storm Surge Watches Issued for the Northern Gulf Coast for Strengthening Tropical Storm Isaias

Tropical Storm Isaias is forecast to track toward the central Gulf Coast while strengthening into a hurricane on Thursday. There is an increasing risk of damaging hurricane-force winds and life-threatening storm surge impacts along portions of the northern Gulf Coast Friday into Saturday. Isaias will bring heavy rainfall to the central Gulf Coast and much of the Southeast Friday into the weekend. Read More >

Current conditions at

Buffalo (K2WX)

Lat: 45.6°NLon: 103.55°WElev: 3002ft.

77°F

25°C

Humidity 18%
Wind Speed N 12 mph
Barometer 30.05 in (1016.5 mb)
Dewpoint 30°F (-1°C)
Visibility NA
Heat Index77°F (25°C)
Last update 7 Oct 3:56 pm MDT
Extended Forecast for

Buffalo SD

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Northeast wind 6 to 9 mph becoming east after midnight. Winds could gust as high as 17 mph.

    Low: 44 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 73. East wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.

    High: 73 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 46. West wind 6 to 9 mph becoming southeast in the evening. Winds could gust as high as 16 mph.

    Low: 46 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, then gradually becoming sunny, with a high near 86. South wind 6 to 11 mph, with gusts as high as 23 mph.

    High: 86 °F

    Decreasing
    Clouds

  • Friday Night

    Friday Night: Partly cloudy, with a low around 53. South wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 22 mph.

    Low: 53 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 81. West wind 11 to 17 mph becoming north in the afternoon. Winds could gust as high as 29 mph.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of rain. Mostly cloudy, with a low around 40. Breezy.

    Low: 40 °F

    Chance Rain
    and Breezy

  • Sunday

    Sunday: A chance of rain. Mostly cloudy, with a high near 49.

    High: 49 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Rain likely before midnight, then rain and snow. Cloudy, with a low around 35.

    Low: 35 °F

    Rain Likely
    then
    Rain/Snow

Detailed Forecast

Tonight
Mostly cloudy, with a low around 44. Northeast wind 6 to 9 mph becoming east after midnight. Winds could gust as high as 17 mph.
Thursday
Sunny, with a high near 73. East wind 6 to 13 mph becoming west in the afternoon. Winds could gust as high as 22 mph.
Thursday Night
Mostly cloudy, with a low around 46. West wind 6 to 9 mph becoming southeast in the evening. Winds could gust as high as 16 mph.
Friday
Mostly cloudy, then gradually becoming sunny, with a high near 86. South wind 6 to 11 mph, with gusts as high as 23 mph.
Friday Night
Partly cloudy, with a low around 53. South wind 6 to 10 mph becoming southwest after midnight. Winds could gust as high as 22 mph.
Saturday
Sunny, with a high near 81. West wind 11 to 17 mph becoming north in the afternoon. Winds could gust as high as 29 mph.
Saturday Night
A 40 percent chance of rain. Mostly cloudy, with a low around 40. Breezy.
Sunday
A chance of rain. Mostly cloudy, with a high near 49.
Sunday Night
Rain likely before midnight, then rain and snow. Cloudy, with a low around 35.
Columbus Day
Rain and snow likely before 3pm, then a slight chance of rain. Mostly cloudy, with a high near 45.
Monday Night
A slight chance of rain and snow. Mostly cloudy, with a low around 30.
Tuesday
A slight chance of rain. Partly sunny, with a high near 54.
Tuesday Night
A slight chance of rain. Partly cloudy, with a low around 36.
Wednesday
A chance of rain. Mostly sunny, with a high near 59.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Buffalo SD
 45.58°N 103.55°W (Elev. 2897 ft)
Last Update:
2:42 pm MDT Oct 7, 2026
Forecast Valid:
4pm MDT Oct 7, 2026-6pm MDT Oct 14, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation