Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Hazardous Weather Conditions

Special Weather Statement

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

54°F

12°C

Humidity	45%
Wind Speed	NNW 14 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	21 Mar 04:30 PM MDT

More Information:

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

Extended Forecast for

6 Miles ESE Big Sky MT

This Afternoon
High: 53 °F
Slight Chance
Rain
Tonight
Low: 29 °F
Slight Chance
Rain then
Partly Cloudy
Sunday
High: 49 °F
Sunny
Sunday Night
Low: 32 °F
Partly Cloudy
Monday
High: 54 °F
Partly Sunny
Monday Night
Low: 37 °F
Mostly Cloudy
Tuesday
High: 56 °F
Mostly Cloudy
then Slight
Chance Rain
Tuesday Night
Low: 41 °F
Slight Chance
Rain then
Mostly Cloudy
Wednesday
High: 56 °F
Chance Rain

Detailed Forecast

This Afternoon

A 20 percent chance of rain. Mostly cloudy, with a steady temperature around 53. West wind 15 to 17 mph, with gusts as high as 29 mph.

Tonight

A 20 percent chance of rain before 7pm. Partly cloudy, with a low around 29. Northwest wind 11 to 16 mph becoming light and variable in the evening. Winds could gust as high as 20 mph.

Sunday

Sunny, with a high near 49. Calm wind becoming west 5 to 7 mph in the afternoon. Winds could gust as high as 18 mph.

Sunday Night

Partly cloudy, with a low around 32. West wind around 5 mph becoming calm in the evening.

Monday

Partly sunny, with a high near 54. Calm wind becoming southwest 5 to 7 mph in the afternoon.

Monday Night

Mostly cloudy, with a low around 37. Southwest wind around 5 mph becoming calm in the evening.

Tuesday

A 20 percent chance of rain after noon. Mostly cloudy, with a high near 56. Light south southwest wind increasing to 6 to 11 mph in the afternoon. Winds could gust as high as 23 mph.

Tuesday Night

A slight chance of rain before midnight. Mostly cloudy, with a low around 41. South southwest wind 6 to 8 mph, with gusts as high as 21 mph.

Wednesday

A chance of rain, mainly after noon. Partly sunny, with a high near 56.

Wednesday Night

A slight chance of rain and snow before midnight, then a slight chance of snow. Mostly cloudy, with a low around 32.

Thursday

A slight chance of snow. Mostly sunny, with a high near 45.

Thursday Night

Mostly cloudy, with a low around 25.

Friday

Mostly sunny, with a high near 49.