Air Quality Concerns; Fire Weather; Extreme Heat; Severe Thunderstorms and Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and flash flooding possible for the Southeast through today. Strong to severe thunderstorms for the Southern Plains with severe wind gusts and large hail possible. Read More >

Current conditions at

HORSE THIEF (HORM8)

Lat: 46.42581°NLon: 108.6745°WElev: 3414.0ft.

85°F

29°C

Humidity	35%
Wind Speed	NE 2 MPH
Barometer	NA
Dewpoint	54°F (12°C)
Visibility	NA
Heat Index	84°F (29°C)
Last update	04 Aug 12:39 PM MDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Roundup MT

This Afternoon
High: 92 °F
Severe
Thunderstorms
Tonight
Low: 58 °F
Severe
Thunderstorms
then Slight
Chance
Showers
Tuesday
High: 84 °F
Sunny
Tuesday Night
Low: 54 °F
Mostly Clear
Wednesday
High: 90 °F
Hot
Wednesday Night
Low: 58 °F
Partly Cloudy
Thursday
High: 87 °F
Partly Sunny
then Slight
Chance
T-storms
Thursday Night
Low: 56 °F
Chance
T-storms then
Chance
Showers
Friday
High: 76 °F
Chance
Showers

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms after 3pm. Some of the storms could be severe. Mostly sunny and hot, with a high near 92. East wind 6 to 8 mph.

Tonight

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Some of the storms could be severe. Cloudy, then gradually becoming partly cloudy, with a low around 58. South wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 50%.

Tuesday

Sunny, with a high near 84. West wind 5 to 10 mph.

Tuesday Night

Mostly clear, with a low around 54. West northwest wind 5 to 10 mph becoming light north in the evening.

Wednesday

Sunny and hot, with a high near 90. Calm wind becoming west around 5 mph in the afternoon.

Wednesday Night

Partly cloudy, with a low around 58. North northwest wind around 6 mph becoming calm after midnight.

Thursday

A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 87. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

Thursday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 56. North wind 5 to 8 mph becoming light and variable after midnight. Chance of precipitation is 50%.

Friday

A chance of showers, with thunderstorms also possible after noon. Partly sunny, with a high near 76. Light west wind becoming west northwest 5 to 10 mph in the morning. Chance of precipitation is 40%.

Friday Night

A chance of showers and thunderstorms before midnight, then a slight chance of showers. Partly cloudy, with a low around 51. Northwest wind 5 to 10 mph becoming west southwest after midnight. Chance of precipitation is 30%.

Saturday

A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 78. West southwest wind 6 to 10 mph becoming northwest in the afternoon.

Saturday Night

Partly cloudy, with a low around 52. North northwest wind 5 to 9 mph becoming calm after midnight.

Sunday

Mostly sunny, with a high near 83. Light and variable wind becoming west northwest 5 to 7 mph in the morning.