Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

HELENA (HRWM8)

Lat: 46.73167°NLon: 112.01917°WElev: 3800.0ft.

76°F

24°C

Humidity	34%
Wind Speed	SE 10 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Heat Index	78°F (26°C)
Last update	17 Sep 05:53 PM MDT

More Information:

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

Extended Forecast for

6 Miles E Marysville MT

Tonight
Low: 50 °F
Chance
T-storms then
Partly Cloudy
Friday
High: 72 °F
Mostly Sunny
then Chance
Showers
Friday Night
Low: 52 °F
Rain
Saturday
High: 62 °F
Showers
Likely
Saturday Night
Low: 48 °F
Chance Rain
then Mostly
Cloudy
Sunday
High: 72 °F
Sunny
Sunday Night
Low: 48 °F
Mostly Clear
Monday
High: 75 °F
Sunny
Monday Night
Low: 49 °F
Mostly Clear

Detailed Forecast

Tonight

A chance of showers and thunderstorms before 9pm, then a chance of rain between 9pm and midnight. Mostly cloudy, with a low around 50. South wind around 6 mph becoming calm in the evening. Chance of precipitation is 50%.

Friday

A slight chance of rain between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 72. Light and variable wind becoming north northwest 5 to 10 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 50%.

Friday Night

Rain and thunderstorms. Low around 52. North northwest wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

Saturday

Rain likely before noon, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 62. North wind 5 to 7 mph. Chance of precipitation is 70%.

Saturday Night

A 30 percent chance of rain before midnight. Mostly cloudy, with a low around 48. North wind around 5 mph becoming calm after midnight.

Sunday

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

Sunday Night

Mostly clear, with a low around 48. South southeast wind around 5 mph becoming calm in the evening.

Monday

Sunny, with a high near 75. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

Monday Night

Mostly clear, with a low around 49.

Tuesday

Sunny, with a high near 74.