Heavy Rainfall and Severe Thunderstorms in the Midwest and Ohio Valley Tuesday

Multiple rounds of severe thunderstorms appear likely Tuesday across the Midwest and Ohio Valley, with severe wind gusts in excess of 75 mph as the primary threat. Heavy to excessive rainfall may lead to considerable flash and urban flooding impacts Tuesday across portions of the Ohio Valley. A Moderate Risk (level 3 of 4) of excessive rainfall has been issued. Read More >

Hazardous Weather Conditions

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

Lat: 46.52361°NLon: 112.80843°WElev: 4327.0ft.

75°F

24°C

Humidity	18%
Wind Speed	N 4 MPH
Barometer	NA
Dewpoint	29°F (-2°C)
Visibility	NA
Last update	10 Aug 09:00 PM MDT

More Information:

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

Extended Forecast for

7 Miles NW Garrison MT

Red Flag Warning August 11, 12:00pm until August 11, 09:00pm

Click here for hazard details and duration

Red Flag Warning

Tonight
Low: 44 °F
Areas Smoke
Tuesday
High: 85 °F
Areas Smoke
Tuesday Night
Low: 44 °F
Patchy Smoke
Wednesday
High: 81 °F
Patchy Smoke
then Slight
Chance
T-storms
Wednesday Night
Low: 43 °F
Chance
Showers
Thursday
High: 73 °F
Partly Sunny
then Showers
Likely
Thursday Night
Low: 41 °F
Showers then
Chance Rain
Friday
High: 73 °F
Showers
Likely
Friday Night
Low: 40 °F
Chance
Showers then
Partly Cloudy

Detailed Forecast

Tonight

Areas of smoke. Mostly clear, with a low around 44. Northwest wind around 5 mph becoming calm in the evening.

Tuesday

Areas of smoke before 4pm. Sunny, with a high near 85. Calm wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

Tuesday Night

Patchy smoke after 7pm. Mostly clear, with a low around 44. West northwest wind 5 to 7 mph becoming calm in the evening. Winds could gust as high as 18 mph.

Wednesday

A slight chance of showers between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Patchy smoke before 7am. Mostly sunny, with a high near 81. Calm wind becoming northeast around 5 mph in the afternoon. Chance of precipitation is 20%.

Wednesday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 43. East northeast wind 5 to 8 mph becoming calm after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 40%.

Thursday

Showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Showers and possibly a thunderstorm before midnight, then a chance of rain after midnight. Low around 41. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday

A chance of rain, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 73.

Friday Night

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 40.

Saturday

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

Saturday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 42.

Sunday

A chance of showers and thunderstorms. Mostly sunny, with a high near 80.

Sunday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 43.