Extreme Heat and Tropical Storm Bertha Impacts

Dangerous heat will expand from the Gulf Coast into the Southern Plains and Desert Southwest through week's end. Additional extreme heat impacting the Pacific Northwest will shift to the northern Plains by the weekend. Tropical Storm Bertha is expected to continue to impact portions of the northwestern Gulf Coast from south central Louisiana to the upper Texas coast today. Read More >

Hazardous Weather Conditions

Fire Weather Watch in effect from July 25, 12:00 PM MDT until July 26, 12:00 AM MDT

Current conditions at

Karst US-191 MP 55.3 (MTKAR)

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

unknown precip

72°F

22°C

Humidity	82%
Wind Speed	NNW 4 MPH
Barometer	NA
Dewpoint	66°F (19°C)
Visibility	NA
Last update	23 Jul 03:30 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

Fire Weather Watch July 25, 12:00pm until July 26, 12:00am

Click here for hazard details and duration

Fire Weather Watch

This Afternoon
High: 86 °F
Chance
T-storms
Tonight
Low: 55 °F
Chance
T-storms then
Mostly Clear
Friday
High: 92 °F
Sunny then
Slight Chance
T-storms
Friday Night
Low: 56 °F
Slight Chance
T-storms then
Partly Cloudy
Saturday
High: 92 °F
Mostly Sunny
then Chance
T-storms
Saturday Night
Low: 55 °F
Slight Chance
T-storms then
Partly Cloudy
Sunday
High: 92 °F
Sunny
Sunday Night
Low: 55 °F
Partly Cloudy
Monday
High: 90 °F
Mostly Sunny

Detailed Forecast

This Afternoon

A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 86. Light west northwest wind.

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 7pm. Partly cloudy, with a low around 55. Light and variable wind.

Friday

A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 92. Calm wind becoming west southwest 5 to 8 mph in the afternoon. Winds could gust as high as 20 mph.

Friday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and 11pm. Partly cloudy, with a low around 56. South wind 3 to 5 mph. Chance of precipitation is 20%.

Saturday

A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. South wind 3 to 8 mph. Winds could gust as high as 21 mph.

Saturday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55. Southwest wind 5 to 7 mph becoming calm after midnight. Winds could gust as high as 20 mph.

Sunday

Sunny, with a high near 92. Calm wind becoming southwest 5 to 7 mph in the afternoon. Winds could gust as high as 20 mph.

Sunday Night

Partly cloudy, with a low around 55. West southwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 20 mph.

Monday

Mostly sunny, with a high near 90.

Monday Night

Partly cloudy, with a low around 54.

Tuesday

Sunny, with a high near 91.

Tuesday Night

Partly cloudy, with a low around 54.