Watching Potential Tsunami Impacts Across the Pacific Basin

A strong earthquake in the Pacific Basin has generated a tsunami wave. Tsunami Warnings and Advisories have been issued for Hawaii, portions of Alaska, Guam, American Samoa, and the West Coast of the U.S. Read More >

Hazardous Weather Conditions

Hydrologic Outlook

Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874.0ft.

Clear

75°F

24°C

Humidity	41%
Wind Speed	ENE 11 MPH
Barometer	30.25 in (1024.38 mb)
Dewpoint	50°F (10°C)
Visibility	10.00 mi
Last update	29 Jul 09:20 PM MDT

More Information:

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

Extended Forecast for

Helena MT

Tonight
Low: 57 °F
Chance
T-storms then
Mostly Cloudy
Wednesday
High: 84 °F
Mostly Sunny
then Chance
T-storms
Wednesday Night
Low: 58 °F
Partly Cloudy
Thursday
High: 87 °F
Mostly Sunny
then Chance
T-storms
Thursday Night
Low: 58 °F
Chance
T-storms then
Mostly Cloudy
Friday
High: 86 °F
Mostly Sunny
then Chance
Showers
Friday Night
Low: 57 °F
Chance
Showers then
Partly Cloudy
Saturday
High: 83 °F
Sunny then
Chance
Showers
Saturday Night
Low: 55 °F
Slight Chance
T-storms then
Partly Cloudy

Detailed Forecast

Tonight

A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, with a low around 57. Northwest wind 5 to 8 mph becoming calm after midnight.

Wednesday

A 30 percent chance of showers and thunderstorms, mainly between 3pm and 4pm. Mostly sunny, with a high near 84. Light and variable wind becoming northeast 5 to 10 mph in the afternoon. Winds could gust as high as 18 mph.

Wednesday Night

Partly cloudy, with a low around 58. Northeast wind 6 to 11 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

Thursday

A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. Calm wind becoming east northeast 5 to 9 mph in the afternoon.

Thursday Night

A 40 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58. East northeast wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 18 mph.

Friday

A chance of showers and thunderstorms between noon and 3pm, then a chance of showers after 3pm. Partly sunny, with a high near 86. Calm wind becoming west northwest 5 to 7 mph in the afternoon. Chance of precipitation is 50%.

Friday Night

A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. West northwest wind 5 to 8 mph becoming southwest after midnight.

Saturday

A chance of showers after noon. Mostly sunny, with a high near 83. Light and variable wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.

Saturday Night

A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.

Sunday

A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.

Sunday Night

A slight chance of showers and thunderstorms. Partly cloudy, with a low around 54.

Monday

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

Monday Night

A chance of showers and thunderstorms. Mostly cloudy, with a low around 53.

Tuesday

A slight chance of showers. Mostly sunny, with a high near 81.