Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

HORSE THIEF (HORM8)

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

59°F

15°C

Humidity	89%
Wind Speed	SSE 1 MPH
Barometer	NA
Dewpoint	56°F (13°C)
Visibility	NA
Last update	15 Aug 07:39 AM MDT

More Information:

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

Extended Forecast for

Roundup MT

Today
High: 77 °F
Patchy Fog
then Mostly
Sunny
Tonight
Low: 52 °F
Chance
Showers
Sunday
High: 84 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 53 °F
Chance
Showers then
Mostly Cloudy
Monday
High: 85 °F
Partly Sunny
Monday Night
Low: 54 °F
Chance
Showers
Tuesday
High: 79 °F
Showers
Likely
Tuesday Night
Low: 49 °F
Chance
Showers then
Mostly Cloudy
Wednesday
High: 84 °F
Mostly Sunny

Detailed Forecast

Today

Patchy fog before 9am. Otherwise, partly sunny, with a high near 77. Calm wind becoming east northeast around 5 mph in the afternoon.

Tonight

A chance of showers and thunderstorms before 1am, then a slight chance of showers between 1am and 3am. Mostly cloudy, with a low around 52. East wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%.

Sunday

A 20 percent chance of showers and thunderstorms after 5pm. Sunny, with a high near 84. Calm wind becoming west southwest around 6 mph in the morning.

Sunday Night

A chance of showers and thunderstorms before 9pm, then a chance of showers between 9pm and midnight. Mostly cloudy, with a low around 53. Light and variable wind. Chance of precipitation is 30%.

Monday

Partly sunny, with a high near 85. West southwest wind 3 to 8 mph.

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 54. North wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 50%.

Tuesday

A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 79. West wind 5 to 8 mph becoming north in the afternoon. Chance of precipitation is 60%.

Tuesday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 49. North northeast wind 5 to 7 mph becoming calm in the evening.

Wednesday

Mostly sunny, with a high near 84. Southwest wind 3 to 6 mph.

Wednesday Night

Partly cloudy, with a low around 52. West wind around 5 mph becoming calm in the evening.

Thursday

Mostly sunny, with a high near 87. West southwest wind 5 to 7 mph.

Thursday Night

Partly cloudy, with a low around 54. North wind 5 to 7 mph becoming calm in the evening.

Friday

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