Lala Approaching Hawaii; Flash Flooding Risks; Excessive Heat

Lala, may become a hurricane, is expected to impact Hawaii this weekend. Heavy rainfall, strong winds, dangerous surf and localized flooding are expected. Heavy rainfall and flash flooding concerns from the mid-Mississippi Valley, Ohio Valley into the central Appalachians continues, with the threat shifting toward the mid-Atlantic later this weekend. Record heat continues for areas of the South. Read More >

Current conditions at

HELENA (HRWM8)

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

73°F

23°C

Humidity	50%
Wind Speed	SW 5 MPH
Barometer	NA
Dewpoint	53°F (12°C)
Visibility	NA
Last update	15 Aug 05:53 PM MDT

More Information:

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

Extended Forecast for

4 Miles SSE Marysville MT

Tonight
Low: 51 °F
Showers
Likely then
Chance
Showers
Sunday
High: 73 °F
Mostly Sunny
then Slight
Chance
T-storms
Sunday Night
Low: 53 °F
Slight Chance
T-storms then
Mostly Cloudy
Monday
High: 73 °F
Decreasing
Clouds
Monday Night
Low: 56 °F
Mostly Cloudy
then Chance
Showers
Tuesday
High: 70 °F
Mostly Sunny
then Chance
Showers
Tuesday Night
Low: 52 °F
Slight Chance
T-storms then
Partly Cloudy
Wednesday
High: 72 °F
Mostly Sunny
Wednesday Night
Low: 54 °F
Partly Cloudy

Detailed Forecast

Tonight

Showers and thunderstorms likely before 1am, then a slight chance of showers between 1am and 5am. Patchy smoke before 9pm. Cloudy, then gradually becoming partly cloudy, with a low around 51. East northeast wind around 6 mph becoming west southwest in the evening. Chance of precipitation is 70%.

Sunday

A 20 percent chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 73. West southwest wind 3 to 7 mph.

Sunday Night

A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Mostly cloudy, with a low around 53. West southwest wind around 6 mph. Chance of precipitation is 20%.

Monday

Cloudy, then gradually becoming mostly sunny, with a high near 73. Calm wind becoming west 5 to 8 mph in the afternoon.

Monday Night

A 40 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 56. West wind around 8 mph, with gusts as high as 18 mph.

Tuesday

A 40 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 70. Light west southwest wind becoming west northwest 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

Tuesday Night

A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 52. West southwest wind around 7 mph.

Wednesday

Mostly sunny, with a high near 72. Light southwest wind becoming west 5 to 9 mph in the afternoon. Winds could gust as high as 18 mph.

Wednesday Night

Partly cloudy, with a low around 54.

Thursday

Sunny, with a high near 75.

Thursday Night

Partly cloudy, with a low around 57.

Friday

Sunny, with a high near 78.