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

Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Buffalo - Johnson County Airport (KBYG)

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

Partly Cloudy

82°F

28°C

Humidity 24%
Wind Speed SSW 6 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 43°F (6°C)
Visibility 10.00 mi
Heat Index80°F (27°C)
Last update 17 Aug 02:05 PM MDT
Extended Forecast for

Buffalo WY

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Light and variable wind becoming north northwest 5 to 9 mph.

    High: 82 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. Southwest wind 5 to 9 mph becoming calm.

    Low: 62 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the morning.

    High: 85 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 63. Northeast wind 5 to 7 mph becoming southwest after midnight.

    Low: 63 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 93. Southwest wind 6 to 10 mph becoming south southeast in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. South southwest wind 9 to 13 mph.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 95. South southwest wind 9 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph.

    High: 95 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65.

    Low: 65 °F

    Partly Cloudy

  • Thursday

    Thursday: A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83.

    High: 83 °F

    Sunny then
    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 82. Light and variable wind becoming north northwest 5 to 9 mph.
Tonight
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62. Southwest wind 5 to 9 mph becoming calm.
Monday
Sunny, with a high near 85. Calm wind becoming northeast around 6 mph in the morning.
Monday Night
Mostly clear, with a low around 63. Northeast wind 5 to 7 mph becoming southwest after midnight.
Tuesday
Sunny, with a high near 93. Southwest wind 6 to 10 mph becoming south southeast in the afternoon.
Tuesday Night
Mostly clear, with a low around 65. South southwest wind 9 to 13 mph.
Wednesday
Sunny, with a high near 95. South southwest wind 9 to 13 mph becoming west in the afternoon. Winds could gust as high as 20 mph.
Wednesday Night
Partly cloudy, with a low around 65.
Thursday
A 10 percent chance of showers and thunderstorms after noon. Sunny, with a high near 83.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 58.
Friday
A chance of showers and thunderstorms. Mostly sunny, with a high near 77.
Friday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Saturday
A slight chance of showers and thunderstorms. Sunny, with a high near 77.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Buffalo WY
 44.35°N 106.69°W (Elev. 4619 ft)
Last Update:
12:58 pm MDT Aug 17, 2025
Forecast Valid:
2pm MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation