Significant Coastal Impacts to the Eastern Seaboard; Tropical Storm Nolo to Impact Hawaii

A Nor'easter will bring significant coastal impacts to the Mid-Atlantic and New England through the weekend. Moderate to major coastal flooding, heavy rain, strong winds and high surf expected. Tropical Storm Nolo will continue to strengthen as it moves north toward the Big Island of Hawaii. Heavy rainfall may bring life-threatening, catastrophic flooding and mudslides through the weekend. Read More >

Current conditions at

HELENA VALLEY (HVMT)

Lat: 46.67917°NLon: 111.98333°WElev: 3673.0ft.

80°F

27°C

Humidity	26%
Wind Speed	ESE 4 MPH
Barometer	NA
Dewpoint	43°F (6°C)
Visibility	NA
Heat Index	79°F (26°C)
Last update	25 Sep 02:00 PM MDT

More Information:

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

Extended Forecast for

7 Miles NNE East Helena MT

Tonight
Low: 42 °F
Chance
T-storms and
Breezy then
Mostly Clear
Saturday
High: 64 °F
Mostly Sunny
Saturday Night
Low: 37 °F
Mostly Cloudy
Sunday
High: 66 °F
Mostly Cloudy
Sunday Night
Low: 42 °F
Slight Chance
Rain then
Mostly Cloudy
Monday
High: 70 °F
Mostly Sunny
Monday Night
Low: 40 °F
Clear
Tuesday
High: 71 °F
Mostly Sunny
Tuesday Night
Low: 44 °F
Partly Cloudy

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 8pm. Partly cloudy, with a low around 42. Breezy, with a west northwest wind 19 to 24 mph decreasing to 8 to 13 mph. Winds could gust as high as 44 mph.

Saturday

Mostly sunny, with a high near 64. Light and variable wind becoming west 9 to 14 mph in the morning. Winds could gust as high as 25 mph.

Saturday Night

Mostly cloudy, with a low around 37. Northwest wind 5 to 8 mph becoming calm in the evening. Winds could gust as high as 23 mph.

Sunday

Mostly cloudy, with a high near 66. Calm wind.

Sunday Night

A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 42. Calm wind.

Monday

Mostly sunny, with a high near 70. Light and variable wind.

Monday Night

Clear, with a low around 40. West wind around 6 mph becoming calm in the evening.