Severe Thunderstorm and Heavy Rainfall Threat Tonight; Heat Continues on Tuesday Across the Eastern U.S.

Severe weather and flash flooding threats continue across the Central Plains and Midwest into tonight. Very large hail, strong tornadoes and damaging winds are expected. An early season heat wave will continue to challenge temperature records across the eastern U.S. through Wednesday. Read More >

Current conditions at

Buffalo - Johnson County Airport (KBYG)

Lat: 44.38122°NLon: 106.71947°WElev: 4925.0ft.

Overcast

37°F

3°C

Humidity 64%
Wind Speed N 18 MPH
Barometer 30.11 in (1019.64 mb)
Dewpoint 26°F (-3°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 18 May 06:53 PM MDT
Extended Forecast for

Buffalo WY

Freeze Warning May 18, 09:00pm until May 19, 09:00am
Click here for hazard details and duration
Freeze Warning
  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 27. Blustery, with a north wind 5 to 15 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.

    Low: 27 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 56. West southwest wind 5 to 9 mph becoming east southeast in the afternoon.

    High: 56 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 34. Southeast wind 7 to 11 mph becoming west southwest after midnight.

    Low: 34 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 64. West southwest wind 5 to 7 mph becoming light and variable.

    High: 64 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers after midnight.  Mostly cloudy, with a low around 40. North northwest wind 3 to 7 mph.

    Low: 40 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Thursday

    Thursday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 54. North wind 5 to 14 mph, with gusts as high as 23 mph.  Chance of precipitation is 90%.

    High: 54 °F

    Chance
    Showers then
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Mostly cloudy, with a low around 38. Northwest wind 6 to 14 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%.

    Low: 38 °F

    Chance
    Showers

  • Friday

    Friday: A chance of showers, with thunderstorms also possible after noon.  Partly sunny, with a high near 61. Chance of precipitation is 40%.

    High: 61 °F

    Chance
    Showers

  • Friday Night

    Friday Night: A 10 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 27. Blustery, with a north wind 5 to 15 mph becoming west southwest after midnight. Winds could gust as high as 23 mph.
Tuesday
Sunny, with a high near 56. West southwest wind 5 to 9 mph becoming east southeast in the afternoon.
Tuesday Night
Partly cloudy, with a low around 34. Southeast wind 7 to 11 mph becoming west southwest after midnight.
Wednesday
Mostly sunny, with a high near 64. West southwest wind 5 to 7 mph becoming light and variable.
Wednesday Night
A 20 percent chance of showers after midnight. Mostly cloudy, with a low around 40. North northwest wind 3 to 7 mph.
Thursday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 54. North wind 5 to 14 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 38. Northwest wind 6 to 14 mph, with gusts as high as 20 mph. Chance of precipitation is 50%.
Friday
A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 61. Chance of precipitation is 40%.
Friday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 39.
Saturday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 70.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Sunny, with a high near 79.
Sunday Night
Mostly clear, with a low around 49.
Memorial Day
Sunny, with a high near 82.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
Buffalo WY
 44.34°N 106.72°W (Elev. 4797 ft)
6:01 pm MDT May 18, 2026
7pm MDT May 18, 2026-6pm MDT May 25, 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