Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Buffalo - Johnson County Airport (KBYG)

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

Overcast

54°F

12°C

Humidity 48%
Wind Speed NNW 3 MPH
Barometer 30.04 in (1017.27 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 18 Jun 02:53 AM MDT
Extended Forecast for

7 Miles WSW Buffalo WY

  • Overnight

    Overnight: Partly cloudy, with a low around 46. Light west wind.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: A slight chance of showers between 10am and 3pm, then a slight chance of showers and thunderstorms after 3pm.  Mostly sunny, with a high near 67. Light and variable wind becoming north northeast 5 to 10 mph in the morning.  Chance of precipitation is 20%.

    High: 67 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 46. North wind 8 to 13 mph becoming light and variable  after midnight. Winds could gust as high as 21 mph.

    Low: 46 °F

    Mostly Clear

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 73. Light and variable wind becoming east southeast 6 to 11 mph in the morning.

    High: 73 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 52. East southeast wind 5 to 10 mph becoming light and variable.

    Low: 52 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers and possibly a thunderstorm after noon.  High near 77. South southwest wind 5 to 9 mph becoming north northeast in the afternoon.  Chance of precipitation is 90%.

    High: 77 °F

    Partly Sunny
    then Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers.  Low around 51. West northwest wind 5 to 8 mph.  Chance of precipitation is 80%.

    Low: 51 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, then showers and possibly a thunderstorm after noon.  High near 69. Chance of precipitation is 90%.

    High: 69 °F

    Chance
    Showers then
    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before midnight, then a chance of showers.  Mostly cloudy, with a low around 47. Chance of precipitation is 60%.

    Low: 47 °F

    Showers
    Likely

Detailed Forecast

Overnight
Partly cloudy, with a low around 46. Light west wind.
Thursday
A slight chance of showers between 10am and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 67. Light and variable wind becoming north northeast 5 to 10 mph in the morning. Chance of precipitation is 20%.
Thursday Night
Mostly clear, with a low around 46. North wind 8 to 13 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Juneteenth
Mostly sunny, with a high near 73. Light and variable wind becoming east southeast 6 to 11 mph in the morning.
Friday Night
Partly cloudy, with a low around 52. East southeast wind 5 to 10 mph becoming light and variable.
Saturday
Showers and possibly a thunderstorm after noon. High near 77. South southwest wind 5 to 9 mph becoming north northeast in the afternoon. Chance of precipitation is 90%.
Saturday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 51. West northwest wind 5 to 8 mph. Chance of precipitation is 80%.
Sunday
A chance of showers, then showers and possibly a thunderstorm after noon. High near 69. 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 47. Chance of precipitation is 60%.
Monday
Showers and possibly a thunderstorm. High near 61. Chance of precipitation is 90%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 45.
Tuesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 70.
Tuesday Night
A slight chance of showers and thunderstorms. Mostly clear, with a low around 50.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles WSW Buffalo WY
 44.31°N 106.84°W (Elev. 6184 ft)
1:33 am MDT Jun 18, 2026
3am MDT Jun 18, 2026-6pm MDT Jun 24, 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