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.

Rain

63°F

17°C

Humidity 33%
Wind Speed N 31 MPH
Barometer 29.87 in (1011.51 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 17 Jun 03:05 PM MDT
Extended Forecast for

11 Miles WSW Buffalo WY

  • This Afternoon

    This Afternoon: Partly sunny, with a steady temperature around 57. Breezy, with a north wind around 18 mph, with gusts as high as 28 mph.

    High: 57 °F

    Partly Sunny
    and Breezy

  • Tonight

    Tonight: Isolated showers and thunderstorms before 8pm. Mostly cloudy, with a low around 41. Breezy, with a north northwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.

    Low: 41 °F

    Isolated
    T-storms and
    Breezy then
    Partly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 63. Calm wind becoming north 5 to 9 mph in the morning.

    High: 63 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Northeast wind 5 to 9 mph becoming calm in the evening.

    Low: 42 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 67. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 22 mph.

    High: 67 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. East southeast wind 5 to 10 mph becoming light and variable in the evening. Winds could gust as high as 22 mph.

    Low: 49 °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 71. Calm wind becoming north northeast 5 to 8 mph in the afternoon. Chance of precipitation is 80%.

    High: 71 °F

    Slight Chance
    T-storms then
    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 47. Chance of precipitation is 80%.

    Low: 47 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 62. Chance of precipitation is 90%.

    High: 62 °F

    Showers
    Likely then
    Showers

Detailed Forecast

This Afternoon
Partly sunny, with a steady temperature around 57. Breezy, with a north wind around 18 mph, with gusts as high as 28 mph.
Tonight
Isolated showers and thunderstorms before 8pm. Mostly cloudy, with a low around 41. Breezy, with a north northwest wind 12 to 17 mph becoming light and variable after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 20%.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 63. Calm wind becoming north 5 to 9 mph in the morning.
Thursday Night
Partly cloudy, with a low around 42. Northeast wind 5 to 9 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 67. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 22 mph.
Friday Night
Partly cloudy, with a low around 49. East southeast wind 5 to 10 mph becoming light and variable in the evening. 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 71. Calm wind becoming north northeast 5 to 8 mph in the afternoon. Chance of precipitation is 80%.
Saturday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 47. Chance of precipitation is 80%.
Sunday
Showers and possibly a thunderstorm. High near 62. 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 44. Chance of precipitation is 70%.
Monday
Showers 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 43.
Tuesday
A 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:
11 Miles WSW Buffalo WY
 44.29°N 106.93°W (Elev. 7592 ft)
Last Update:
2:47 pm MDT Jun 17, 2026
Forecast Valid:
3pm 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