Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Buffalo - Johnson County Airport (KBYG)

Lat: 44.38122° N Lon: 106.71947° W Elev: 4925.0 ft.

Clear

75°F

24°C

Humidity 23%
Wind Speed SW 17 MPH
Barometer 29.64 in (1003.73 mb)
Dewpoint 36°F (2°C)
Visibility 10.00 mi
Last update 27 Jun 05:10 PM MDT
Detailed forecast for

Northeast Johnson County

Rest Of Tonight
Cloudy. Lows around 50. South winds 10 to 15 mph with gusts up to 25 mph.
Monday
Partly cloudy and windy. Highs around 70. Southwest winds 20 to 30 mph, becoming west in the afternoon.
Monday Night
Partly cloudy and breezy. Lows in the upper 40s. West winds 15 to 20 mph with gusts up to 30 mph, becoming south around 10 mph after midnight.
Tuesday
Mostly sunny. Highs around 80. Northeast winds around 10 mph in the afternoon.
Tuesday Night
Partly cloudy with a slight chance of showers and thunderstorms. Lows in the mid 50s. North winds around 10 mph in the evening. Chance of rain 20 percent.
Wednesday
Partly cloudy in the morning, then mostly sunny with a chance of showers with a slight chance of thunderstorms in the afternoon. Highs around 80. Chance of rain 30 percent.
Wednesday Night
Partly cloudy. Lows in the mid 50s.
Thursday
Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.
Thursday Night
Partly cloudy. Lows in the mid 50s.
Friday
Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent.
Friday Night
Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 50s. Chance of rain 30 percent.
Independence Day
Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent.
Saturday Night
Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the lower 50s. Chance of rain 20 percent.
Sunday
Mostly sunny. A slight chance of. Highs in the mid 80s.



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147 AM MDT Mon Jun 29 2026
 
 

Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database