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

Excessive Rainfall and Tropical Storm in the South; Severe Thunderstorms in the Midwest

Excessive rainfall may produce considerable, potentially life-threatening, flooding across the lower Mississippi River Valley and central Great Lakes region through tonight. Tropical Storm Arthur will move northeastward along the Texas coast today and then move inland over southwestern Louisiana by tonight. An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana. Read More >

Current conditions at

Buffalo - Johnson County Airport (KBYG)

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

Clear

66°F

19°C

Humidity 32%
Wind Speed NNW 29 MPH
Barometer 29.85 in (1010.84 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 17 Jun 01:35 PM MDT
Extended Forecast for

21 Miles SW Buffalo WY

  • This Afternoon

    This Afternoon: Increasing clouds, with a high near 61. Breezy, with a west northwest wind around 17 mph, with gusts as high as 26 mph.

    High: 61 °F

    Increasing
    Clouds and
    Breezy

  • Tonight

    Tonight: A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 39. West northwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 20 mph.

    Low: 39 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 63. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 23 mph.

    High: 63 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 39. West northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 39 °F

    Increasing
    Clouds

  • Juneteenth

    Juneteenth: Sunny, with a high near 67. Light and variable wind becoming south southeast 6 to 11 mph in the morning. Winds could gust as high as 22 mph.

    High: 67 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46. East southeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: A slight chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 70. West northwest wind 5 to 9 mph. Chance of precipitation is 80%.

    High: 70 °F

    Slight Chance
    T-storms then
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Showers
    Likely then
    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 61. Chance of precipitation is 90%.

    High: 61 °F

    Showers

Detailed Forecast

This Afternoon
Increasing clouds, with a high near 61. Breezy, with a west northwest wind around 17 mph, with gusts as high as 26 mph.
Tonight
A 10 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, with a low around 39. West northwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 20 mph.
Thursday
Sunny, with a high near 63. Light west wind increasing to 5 to 10 mph in the morning. Winds could gust as high as 23 mph.
Thursday Night
Increasing clouds, with a low around 39. West northwest wind 5 to 8 mph becoming calm after midnight.
Juneteenth
Sunny, with a high near 67. Light and variable wind becoming south southeast 6 to 11 mph in the morning. Winds could gust as high as 22 mph.
Friday Night
Partly cloudy, with a low around 46. East southeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 22 mph.
Saturday
A slight chance of showers and thunderstorms between 9am and noon, then showers and possibly a thunderstorm after noon. High near 70. West northwest wind 5 to 9 mph. Chance of precipitation is 80%.
Saturday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 44. Chance of precipitation is 70%.
Sunday
Showers and possibly a thunderstorm. High near 61. Chance of precipitation is 90%.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then a chance of showers. Mostly cloudy, with a low around 41. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 60.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 41.
Tuesday
A slight chance of showers and thunderstorms. Sunny, with a high near 65.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
21 Miles SW Buffalo WY
 44.09°N 106.96°W (Elev. 7999 ft)
Last Update:
12:31 pm MDT Jun 17, 2026
Forecast Valid:
1pm MDT Jun 17, 2026-6pm MDT Jun 23, 2026
 
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