Strong to Severe Thunderstorms in the East; Heat in the Central and Western U.S.

Strong to potentially severe thunderstorms with damaging wind gusts are forecast Thursday from parts of New England into the Mid Atlantic and Carolinas. Significant heat will expand across the West and Central Plains through Friday, potentially breaking daily high temperature records. Dangerous heat will then build into the Eastern U.S. this weekend through much of next week. Read More >

Hazardous Weather Conditions

Winter Weather Advisory in effect from June 21, 06:00 PM MDT until June 22, 12:00 PM MDT

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

50°F

10°C

Humidity	100%
Wind Speed	ESE 2 MPH
Barometer	NA
Dewpoint	50°F (10°C)
Visibility	NA
Last update	20 Jun 03:45 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

Winter Weather Advisory June 21, 06:00pm until June 22, 12:00pm

Click here for hazard details and duration

Winter Weather Advisory

Overnight
Low: 55 °F
Chance
Showers
Friday
High: 79 °F
Showers
Likely
Friday Night
Low: 40 °F
Showers
Saturday
High: 63 °F
Chance
Showers
Saturday Night
Low: 35 °F
Chance
Showers then
Rain
Sunday
High: 53 °F
Showers
Sunday Night
Low: 29 °F
Chance
T-storms then
Partly Cloudy
Monday
High: 66 °F
Sunny
Monday Night
Low: 36 °F
Partly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of showers. Mostly cloudy, with a low around 55. Calm wind.

Friday

Showers likely, with thunderstorms also possible after noon. Partly sunny, with a high near 79. Light and variable wind becoming south 9 to 14 mph in the morning. Winds could gust as high as 31 mph. Chance of precipitation is 60%.

Friday Night

Showers and thunderstorms before 5am, then a chance of showers. Low around 40. South southwest wind 8 to 13 mph becoming light and variable. Winds could gust as high as 28 mph. Chance of precipitation is 80%.

Saturday

A chance of rain before noon, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 63. Southwest wind 5 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 50%.

Saturday Night

A chance of showers and thunderstorms, then rain after midnight. Low around 35. West wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 21 mph. Chance of precipitation is 80%.

Sunday

Rain before noon, then showers and possibly a thunderstorm after noon. High near 53. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 90%.

Sunday Night

A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 29. West northwest wind around 6 mph becoming calm in the evening.

Monday

Sunny, with a high near 66. Calm wind becoming west southwest around 5 mph in the afternoon.

Monday Night

Partly cloudy, with a low around 36.

Tuesday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 73.

Tuesday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 40.

Wednesday

A chance of showers and thunderstorms. Mostly sunny, with a high near 77.

Wednesday Night

Partly cloudy, with a low around 45.