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.

Partly Cloudy

59°F

15°C

Humidity 47%
Wind Speed NNW 27 MPH
Barometer 29.84 in (1010.5 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 17 Jun 10:05 AM MDT
Extended Forecast for

11 Miles WSW Buffalo WY

  • Today

    Today: A 40 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 61. Breezy, with a northwest wind 15 to 18 mph, with gusts as high as 31 mph.

    High: 61 °F

    Breezy. Sunny
    then Chance
    Showers

  • Tonight

    Tonight: A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 40. Breezy, with a north northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 50%.

    Low: 40 °F

    Chance
    Showers and
    Breezy then
    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 62. Calm wind becoming east northeast 5 to 8 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 42. Northeast wind 5 to 8 mph becoming calm in the evening.

    Low: 42 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 69. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.

    High: 69 °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 after midnight. Winds could gust as high as 20 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers and possibly a thunderstorm after noon. High near 71. Calm wind becoming east 5 to 8 mph in the afternoon. Chance of precipitation is 80%.

    High: 71 °F

    Partly Sunny
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers and thunderstorms after midnight. Low around 47. Chance of precipitation is 90%.

    Low: 47 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 61. Chance of precipitation is 80%.

    High: 61 °F

    Showers

Detailed Forecast

Today
A 40 percent chance of showers and thunderstorms, mainly after 5pm. Mostly sunny, with a high near 61. Breezy, with a northwest wind 15 to 18 mph, with gusts as high as 31 mph.
Tonight
A chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 40. Breezy, with a north northwest wind 11 to 16 mph becoming light and variable after midnight. Winds could gust as high as 28 mph. Chance of precipitation is 50%.
Thursday
Mostly sunny, with a high near 62. Calm wind becoming east northeast 5 to 8 mph in the afternoon.
Thursday Night
Partly cloudy, with a low around 42. Northeast wind 5 to 8 mph becoming calm in the evening.
Juneteenth
Mostly sunny, with a high near 69. Light and variable wind becoming southeast 5 to 10 mph in the morning. Winds could gust as high as 20 mph.
Friday Night
Partly cloudy, with a low around 49. East southeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 20 mph.
Saturday
Showers and possibly a thunderstorm after noon. High near 71. Calm wind becoming east 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 and thunderstorms after midnight. Low around 47. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm. High near 61. Chance of precipitation is 80%.
Sunday Night
Showers likely and possibly a thunderstorm before midnight, then a slight chance of showers. Mostly cloudy, with a low around 43. Chance of precipitation is 60%.
Monday
Showers and possibly a thunderstorm. Partly sunny, with a high near 61.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 43.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 66.
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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:
9:17 am MDT Jun 17, 2026
Forecast Valid:
10am 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