Dangerous Heat over the South-Central and Southwest U.S. Through Next Week

Dangerous heat persists across the Desert Southwest through this weekend and across the Southern Plains and Lower Mississippi Valley through at least the middle of next week. Numerous daily record high temperatures are expected through at least Tuesday for much of Texas and Oklahoma as well as portions of Louisiana, New Mexico, and Arizona. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

Lat: 45.34534°NLon: 111.17261°WElev: 5699.0ft.

54°F

12°C

Humidity	100%
Wind Speed	ESE 5 MPH
Barometer	NA
Dewpoint	54°F (12°C)
Visibility	NA
Last update	23 Aug 05:30 AM MDT

More Information:

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

Extended Forecast for

4 Miles E Big Sky MT

Today
High: 83 °F
Mostly Sunny
then Showers
Likely
Tonight
Low: 43 °F
Partly Cloudy
then Patchy
Smoke
Monday
High: 83 °F
Patchy Smoke
then Mostly
Sunny
Monday Night
Low: 48 °F
Mostly Cloudy
Tuesday
High: 83 °F
Mostly Sunny
then Chance
Showers
Tuesday Night
Low: 48 °F
Slight Chance
T-storms then
Mostly Cloudy
Wednesday
High: 85 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 48 °F
Chance
Showers then
Mostly Cloudy
Thursday
High: 84 °F
Mostly Sunny
then Chance
Showers

Detailed Forecast

Today

A chance of showers and thunderstorms before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 83. South wind 5 to 13 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Tonight

Patchy smoke after 3am. Partly cloudy, with a low around 43. South southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 21 mph.

Monday

Patchy smoke before 8am. Mostly sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon. Winds could gust as high as 18 mph.

Monday Night

Mostly cloudy, with a low around 48. Light and variable wind.

Tuesday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83. Light and variable wind.

Tuesday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 48. Calm wind. Chance of precipitation is 20%.

Wednesday

A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 85. Light and variable wind.

Wednesday Night

A chance of showers before midnight. Mostly cloudy, with a low around 48. Light and variable wind.

Thursday

A chance of showers and thunderstorms after noon. Partly sunny, with a high near 84.

Thursday Night

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 47.

Friday

A slight chance of showers. Mostly sunny, with a high near 82.

Friday Night

A slight chance of showers. Partly cloudy, with a low around 47.