Dangerous Heat in the Southwest; Severe Thunderstorms and Heavy Rain in the Northeast and Mid-Atlantic

Dangerous heat will persist across the Southwest U.S. through Friday with daytime highs of 110-115°F. Heat across the southern Plains will briefly ease to near-normal by late week. Strong to severe thunderstorms may produce damaging wind, hail, a tornado or two, heavy rain and flash flooding across parts of the Mid-Atlantic and Northeast. Heavy rainfall threat continues across the Gulf Coast. Read More >

Current conditions at

Buffalo (K2WX)

Lat: 45.6°NLon: 103.55°WElev: 3002ft.

89°F

32°C

Humidity 29%
Wind Speed SE 15 G 23 mph
Barometer 30.05 in (1015.4 mb)
Dewpoint 53°F (12°C)
Visibility NA
Heat Index87°F (31°C)
Last update 27 Aug 1:56 pm MDT
Extended Forecast for

Buffalo SD

  • This Afternoon

    This Afternoon: Sunny, with a high near 91. Southeast wind 13 to 15 mph, with gusts as high as 25 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 62. Southeast wind 9 to 17 mph, with gusts as high as 24 mph.

    Low: 62 °F

    Mostly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 93. East wind 8 to 10 mph becoming south in the afternoon. Winds could gust as high as 21 mph.

    High: 93 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight.  Cloudy, then gradually becoming partly cloudy, with a low around 63. East wind 8 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 91. Northwest wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.

    High: 91 °F

    Mostly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 58. Northeast wind 5 to 14 mph, with gusts as high as 23 mph.

    Low: 58 °F

    Chance
    T-storms then
    Partly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 87.

    High: 87 °F

    Mostly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 53.

    Low: 53 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

Detailed Forecast

This Afternoon
Sunny, with a high near 91. Southeast wind 13 to 15 mph, with gusts as high as 25 mph.
Tonight
Mostly cloudy, with a low around 62. Southeast wind 9 to 17 mph, with gusts as high as 24 mph.
Friday
Increasing clouds, with a high near 93. East wind 8 to 10 mph becoming south in the afternoon. Winds could gust as high as 21 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Cloudy, then gradually becoming partly cloudy, with a low around 63. East wind 8 to 10 mph becoming northwest after midnight. Winds could gust as high as 20 mph.
Saturday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 91. Northwest wind 7 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 23 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 58. Northeast wind 5 to 14 mph, with gusts as high as 23 mph.
Sunday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Mostly clear, with a low around 53.
Monday
Sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 54.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 88.
Tuesday Night
Partly cloudy, with a low around 56.
Wednesday
Mostly sunny, with a high near 90.
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ABOUT THIS FORECAST

 
Point Forecast:
Buffalo SD
 45.58°N 103.55°W (Elev. 2897 ft)
2:18 pm MDT Aug 27, 2026
2pm MDT Aug 27, 2026-6pm MDT Sep 2, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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