Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Great Lakes

Thunderstorms with strong wind gusts and hail will be possible today from Michigan into the Lower Great Lakes region. A significant and dangerous heat wave will expand from the Central U.S. into the Eastern U.S this weekend through much of next week. Numerous daily record highs and warm lows are likely. 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

52°F

11°C

Humidity	50%
Wind Speed	NW 5 MPH
Barometer	NA
Dewpoint	34°F (1°C)
Visibility	NA
Last update	21 Jun 02:30 PM 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

This Afternoon
High: 58 °F
Slight Chance
T-storms
Tonight
Low: 34 °F
Rain Likely
then
Rain/Snow
Sunday
High: 47 °F
Rain/Snow
then Rain
Sunday Night
Low: 28 °F
Showers
Likely then
Mostly Cloudy
Monday
High: 64 °F
Sunny
Monday Night
Low: 35 °F
Mostly Clear
Tuesday
High: 72 °F
Sunny
Tuesday Night
Low: 40 °F
Partly Cloudy
Wednesday
High: 77 °F
Sunny

Detailed Forecast

This Afternoon

A slight chance of rain before 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 58. Southwest wind 11 to 13 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Tonight

Rain before 4am, then rain and snow. Low around 34. Southwest wind 6 to 10 mph becoming north northeast after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.

Sunday

Rain and snow, becoming all rain after 10am. High near 47. North northeast wind 6 to 9 mph becoming west southwest in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.

Sunday Night

Showers and thunderstorms likely before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 28. West wind 5 to 9 mph becoming light and variable after midnight. Chance of precipitation is 60%.

Monday

Sunny, with a high near 64. South wind 3 to 6 mph.

Monday Night

Mostly clear, with a low around 35. West wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 72. Calm wind becoming west northwest around 5 mph in the afternoon.

Tuesday Night

Partly cloudy, with a low around 40. Light and variable wind.

Wednesday

Sunny, with a high near 77.

Wednesday Night

Partly cloudy, with a low around 46.