Severe Thunderstorms in the Midwest and Arizona; Heat Continues in the Southeast and Southwest

Thunderstorms, some severe, may lead to scattered instances of flash flooding across the Midwest and Ohio Valley and southern Arizona. The threat will shift to the Mid-Atlantic coast on Thursday. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that little-to-no relief from the scorching daytime highs will be available. Read More >

Current conditions at

HORSE THIEF (HORM8)

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

82°F

28°C

Humidity	24%
Wind Speed	NNW 5 MPH
Barometer	NA
Dewpoint	42°F (6°C)
Visibility	NA
Heat Index	80°F (27°C)
Last update	19 Aug 07:39 PM MDT

More Information:

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

Extended Forecast for

Roundup MT

Tonight
Low: 56 °F
Patchy Smoke
Thursday
High: 93 °F
Sunny then
Patchy Smoke
Thursday Night
Low: 59 °F
Partly Cloudy
Friday
High: 90 °F
Hot
Friday Night
Low: 60 °F
Partly Cloudy
Saturday
High: 90 °F
Hot
Saturday Night
Low: 61 °F
Slight Chance
T-storms then
Mostly Cloudy
Sunday
High: 94 °F
Partly Sunny
then Slight
Chance
Showers
Sunday Night
Low: 57 °F
Slight Chance
Showers then
Partly Cloudy

Detailed Forecast

Tonight

Patchy smoke after 9pm. Partly cloudy, with a low around 56. Light and variable wind.

Thursday

Patchy smoke after 3pm. Sunny and hot, with a high near 93. Calm wind becoming northwest 5 to 7 mph in the afternoon.

Thursday Night

Partly cloudy, with a low around 59. North northeast wind around 5 mph becoming calm in the evening.

Friday

Sunny and hot, with a high near 90. Light and variable wind becoming northeast 6 to 11 mph in the morning.

Friday Night

Partly cloudy, with a low around 60. East northeast wind 5 to 10 mph becoming light east after midnight.

Saturday

Partly sunny and hot, with a high near 90. Calm wind becoming south 5 to 8 mph in the afternoon.

Saturday Night

A 20 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 61. South wind 5 to 7 mph becoming light and variable.

Sunday

A 20 percent chance of showers after noon. Mostly sunny and hot, with a high near 94. West southwest wind 7 to 15 mph.

Sunday Night

A 20 percent chance of showers before midnight. Partly cloudy, with a low around 57. North northwest wind 5 to 11 mph.

Monday

Sunny, with a high near 87. Southwest wind 3 to 5 mph.

Monday Night

Partly cloudy, with a low around 57. Northwest wind around 6 mph becoming calm after midnight.

Tuesday

Mostly sunny and hot, with a high near 90. Calm wind becoming southeast around 6 mph in the afternoon.

Tuesday Night

Mostly cloudy, with a low around 58. Southeast wind 3 to 6 mph.