Lala Impacting Hawaii; Severe Thunderstorm and Flash Flooding Risks; Excessive Heat

Areas of gusty winds, heavy rain leading to flash flooding, and high surf continue across portions of Hawaii as Tropical Storm Lala continues to move away from the islands. Severe thunderstorm, heavy rainfall, and flash flooding threats continue from the Midwest to the Mid-Atlantic and across the central High Plains. Record heat continues for areas of the central/southern Plain into the Southeast Read More >

Current conditions at

HELENA (HRWM8)

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

64°F

18°C

Humidity	66%
Wind Speed	SE 5 MPH
Barometer	NA
Dewpoint	52°F (11°C)
Visibility	NA
Last update	17 Aug 12:53 AM MDT

More Information:

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

Extended Forecast for

5 Miles SSE Marysville MT

Overnight
Low: 55 °F
Mostly Cloudy
Monday
High: 73 °F
Partly Sunny
then Slight
Chance
T-storms
Monday Night
Low: 57 °F
Mostly Cloudy
then Slight
Chance
Showers
Tuesday
High: 72 °F
Partly Sunny
then Slight
Chance
T-storms
Tuesday Night
Low: 53 °F
Partly Cloudy
Wednesday
High: 75 °F
Sunny
Wednesday Night
Low: 54 °F
Mostly Clear
Thursday
High: 80 °F
Sunny
Thursday Night
Low: 58 °F
Partly Cloudy

Detailed Forecast

Overnight

Mostly cloudy, with a low around 55. West wind 3 to 5 mph.

Monday

A 20 percent chance of showers and thunderstorms after 5pm. Partly sunny, with a high near 73. Light west southwest wind becoming west northwest 6 to 11 mph in the afternoon. Winds could gust as high as 22 mph.

Monday Night

A slight chance of showers between 3am and 4am. Mostly cloudy, with a low around 57. West northwest wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

Tuesday

A slight chance of showers and thunderstorms between 2pm and 5pm. Mostly sunny, with a high near 72. Light south southwest wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 20%.

Tuesday Night

Partly cloudy, with a low around 53. Southwest wind 6 to 8 mph.

Wednesday

Sunny, with a high near 75. Southwest wind 5 to 11 mph, with gusts as high as 21 mph.

Wednesday Night

Mostly clear, with a low around 54. West southwest wind 6 to 9 mph, with gusts as high as 20 mph.

Thursday

Sunny, with a high near 80. Calm wind becoming southwest around 6 mph in the afternoon.

Thursday Night

Partly cloudy, with a low around 58.

Friday

Mostly sunny, with a high near 80.