Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

HELENA (HRWM8)

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

72°F

22°C

Humidity	39%
Wind Speed	NNE 17 MPH
Barometer	NA
Dewpoint	46°F (8°C)
Visibility	NA
Last update	18 Sep 05:53 PM MDT

More Information:

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

Extended Forecast for

11 Miles NNE Helena MT

Tonight
Low: 51 °F
Showers
Saturday
High: 62 °F
Rain then
Showers
Likely
Saturday Night
Low: 47 °F
Chance Rain
and Patchy
Fog
Sunday
High: 75 °F
Patchy Fog
then Sunny
Sunday Night
Low: 47 °F
Mostly Clear
Monday
High: 79 °F
Sunny
Monday Night
Low: 49 °F
Mostly Clear
Tuesday
High: 79 °F
Sunny
Tuesday Night
Low: 49 °F
Mostly Clear

Detailed Forecast

Tonight

Showers and thunderstorms before 11pm, then showers and possibly a thunderstorm, mainly after 11pm. Low around 51. North wind 5 to 10 mph becoming east in the evening. Winds could gust as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

Saturday

Rain and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms between 1pm and 3pm, then a chance of rain after 3pm. High near 62. North northwest wind 6 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Saturday Night

A 30 percent chance of rain, mainly before 8pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 47. West wind around 5 mph becoming calm in the evening.

Sunday

Patchy fog before 9am. Otherwise, mostly sunny, with a high near 75. Light south wind.

Sunday Night

Mostly clear, with a low around 47. Light south southeast wind.

Monday

Sunny, with a high near 79. Calm wind becoming south around 6 mph in the afternoon.

Monday Night

Mostly clear, with a low around 49. West southwest wind around 5 mph becoming calm in the evening.

Tuesday

Sunny, with a high near 79. Light and variable wind.

Tuesday Night

Mostly clear, with a low around 49.