Heavy Rain From the Central Plains to the Mid-Atlantic; Heat Wave Begins This Weekend

Strong to severe thunderstorms and heavy rain will impact portions of the central Plains into the Upper Midwest and the Mid-Atlantic through the weekend. A stretch of unusually hot and humid weather is expected across portions of the central U.S. and the Southeast beginning this weekend and continuing through next week. The heat may reach dangerous levels, particularly mid to late next week. Read More >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

79°F

26°C

Humidity	25%
Wind Speed	SE 7 MPH
Barometer	NA
Dewpoint	40°F (4°C)
Visibility	NA
Heat Index	78°F (26°C)
Last update	18 Jul 05:30 PM MDT

More Information:

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

Extended Forecast for

15 Miles ENE Big Sky MT

This Afternoon
High: 68 °F
Chance
T-storms
Tonight
Low: 49 °F
Chance
T-storms then
Mostly Clear
Saturday
High: 65 °F
Increasing
Clouds
Saturday Night
Low: 47 °F
Partly Cloudy
Sunday
High: 64 °F
Sunny then
Slight Chance
T-storms
Sunday Night
Low: 47 °F
Mostly Cloudy
Monday
High: 65 °F
Mostly Sunny
then Chance
Showers
Monday Night
Low: 46 °F
Slight Chance
T-storms then
Mostly Cloudy
Tuesday
High: 63 °F
Mostly Sunny
then Chance
Showers

Detailed Forecast

This Afternoon

A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 68. West wind around 13 mph, with gusts as high as 21 mph.

Tonight

A 30 percent chance of showers and thunderstorms before 7pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 49. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.

Saturday

Increasing clouds, with a high near 65. West southwest wind 14 to 20 mph, with gusts as high as 32 mph.

Saturday Night

Partly cloudy, with a low around 47. West southwest wind 15 to 20 mph decreasing to 8 to 13 mph after midnight. Winds could gust as high as 30 mph.

Sunday

A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 64. West southwest wind 9 to 15 mph, with gusts as high as 24 mph.

Sunday Night

Mostly cloudy, with a low around 47. West southwest wind 6 to 11 mph, with gusts as high as 21 mph.

Monday

A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65. South southwest wind 6 to 15 mph, with gusts as high as 26 mph.

Monday Night

A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 46. West wind 7 to 15 mph, with gusts as high as 25 mph.

Tuesday

A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 63.

Tuesday Night

A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.

Wednesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 64.

Wednesday Night

A slight chance of showers and thunderstorms. Mostly clear, with a low around 48.

Thursday

Sunny, with a high near 67.

Thursday Night

Partly cloudy, with a low around 49.