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 >

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

29°F

-2°C

Humidity	94%
Wind Speed	SE 0 MPH
Barometer	NA
Dewpoint	27°F (-3°C)
Visibility	NA
Last update	21 Mar 07:00 AM MDT

More Information:

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

Extended Forecast for

15 Miles ENE Big Sky MT

Today
High: 49 °F⇓
Breezy.
Partly Sunny
then Chance
Rain/Snow
Tonight
Low: 24 °F
Chance Snow
Sunday
High: 39 °F
Sunny
Sunday Night
Low: 26 °F
Partly Cloudy
Monday
High: 44 °F
Partly Sunny
Monday Night
Low: 31 °F
Mostly Cloudy
Tuesday
High: 44 °F
Chance Snow
Tuesday Night
Low: 36 °F
Chance
Rain/Snow
then Mostly
Cloudy
Wednesday
High: 45 °F
Slight Chance
Snow then
Chance
Rain/Snow and
Breezy

Detailed Forecast

Today

A chance of rain and snow between 3pm and 5pm, then a chance of snow after 5pm. Partly sunny, with a temperature rising to near 49 by 10am, then falling to around 39 during the remainder of the day. Breezy, with a southwest wind 21 to 29 mph becoming west northwest in the afternoon. Winds could gust as high as 47 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tonight

A 40 percent chance of snow, mainly before midnight. Mostly cloudy, with a low around 24. Northwest wind 10 to 17 mph, with gusts as high as 26 mph. New snow accumulation of less than one inch possible.

Sunday

Sunny, with a high near 39. West wind 10 to 15 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 36 mph.

Sunday Night

Partly cloudy, with a low around 26. Southwest wind 14 to 21 mph, with gusts as high as 32 mph.

Monday

Partly sunny, with a high near 44. Southwest wind 13 to 16 mph, with gusts as high as 26 mph.

Monday Night

Mostly cloudy, with a low around 31. West southwest wind 14 to 17 mph, with gusts as high as 28 mph.

Tuesday

A 30 percent chance of snow, mainly after noon. Mostly cloudy, with a high near 44. South southwest wind 15 to 20 mph, with gusts as high as 31 mph. Little or no snow accumulation expected.

Tuesday Night

A chance of rain and snow before midnight. Mostly cloudy, with a low around 36. Southwest wind around 16 mph, with gusts as high as 34 mph.

Wednesday

A slight chance of snow before noon, then a chance of rain and snow between noon and 3pm, then a chance of snow after 3pm. Partly sunny, with a high near 45. Breezy.

Wednesday Night

A chance of snow. Mostly cloudy, with a low around 26. Breezy.

Thursday

A slight chance of snow. Mostly sunny, with a high near 36.

Thursday Night

Mostly cloudy, with a low around 20.

Friday

Mostly sunny, with a high near 39.