Heavy Rainfall and Flooding Threats in the Midwest and Ohio Valley; Heat Continues in the Plains and Southeast

An active pattern will continue to bring heavy to excessive rainfall and flash flooding threats to the Midwest and Ohio Valley over the next couple of days. Dangerous heat continues across the central/southern Plains and Southeast U.S. into next week. There is potential for record-tying/breaking temperatures with many areas forecast to see their hottest temperatures so far this year. Read More >

Current conditions at

Garrison I-90 MP 174.4 (MTGAR)

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

unknown precip

55°F

13°C

Humidity	80%
Wind Speed	S 2 MPH
Barometer	NA
Dewpoint	49°F (9°C)
Visibility	NA
Last update	13 Aug 03:00 AM MDT

More Information:

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

Extended Forecast for

12 Miles SSE Helmville MT

Overnight
Low: 49 °F
Chance
Showers
Thursday
High: 63 °F
Slight Chance
Rain then
Chance
T-storms
Thursday Night
Low: 48 °F
Rain Likely
Friday
High: 56 °F
Chance Rain
then Showers
Friday Night
Low: 46 °F
Chance
T-storms then
Mostly Cloudy
Saturday
High: 65 °F
Mostly Sunny
then Slight
Chance
T-storms
Saturday Night
Low: 48 °F
Chance
Showers then
Partly Cloudy
Sunday
High: 68 °F
Sunny
Sunday Night
Low: 50 °F
Slight Chance
T-storms then
Mostly Cloudy

Detailed Forecast

Overnight

A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 49. East northeast wind around 9 mph.

Thursday

A chance of rain and thunderstorms before 3pm, then a chance of showers and thunderstorms, mainly after 4pm. Patchy smoke between 4pm and 5pm. Partly sunny, with a high near 63. East northeast wind 5 to 8 mph becoming south in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Thursday Night

Rain and thunderstorms likely before 4am, then a chance of rain after 5am. Patchy smoke between 2am and 5am. Mostly cloudy, with a low around 48. East wind 6 to 8 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Friday

Rain and possibly a thunderstorm before 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then showers likely and possibly a thunderstorm after 4pm. High near 56. East wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

Friday Night

A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 46. East wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

Saturday

A slight chance of rain between noon and 3pm, then a slight chance of showers and thunderstorms after 3pm. Mostly sunny, with a high near 65. Chance of precipitation is 20%.

Saturday Night

A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.

Sunday

Sunny, with a high near 68.

Sunday Night

A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 50.

Monday

A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 67.

Monday Night

A chance of rain and thunderstorms. Mostly cloudy, with a low around 50.

Tuesday

A chance of showers and thunderstorms. Partly sunny, with a high near 65.

Tuesday Night

A chance of rain and thunderstorms. Mostly cloudy, with a low around 49.