Heavy to Excessive Rainfall for the Southwest U.S.; Watching for Possible East Coast Storm

Thunderstorms and a chance for some isolated flash flooding will continue today in the Southwest U.S. before an influx of tropical moisture from Priscilla brings widespread heavy rainfall and a flash flooding threat late this week into this weekend. A coastal storm may develop off the southeast U.S. coast Friday night and drift north just off the Mid-Atlantic coast through the weekend. Read More >

Current conditions at

HELENA (HRWM8)

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

69°F

21°C

Humidity	26%
Wind Speed	SSE 7 MPH
Barometer	NA
Dewpoint	33°F (1°C)
Visibility	NA
Last update	08 Oct 01:53 PM MDT

More Information:

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

Extended Forecast for

3 Miles SW Marysville MT

This Afternoon
High: 57 °F
Sunny
Tonight
Low: 37 °F
Mostly Clear
Thursday
High: 53 °F
Sunny
Thursday Night
Low: 38 °F
Mostly Clear
Friday
High: 62 °F
Slight Chance
Showers
Friday Night
Low: 44 °F
Slight Chance
Showers then
Chance
Showers
Saturday
High: 48 °F
Rain/Snow
Saturday Night
Low: 30 °F
Rain/Snow
Likely then
Snow Likely
Sunday
High: 32 °F
Snow Likely

Detailed Forecast

This Afternoon

Sunny, with a high near 57. South southwest wind 7 to 9 mph.

Tonight

Mostly clear, with a low around 37. South southwest wind 5 to 9 mph becoming northeast after midnight.

Thursday

Sunny, with a high near 53. Northeast wind 8 to 10 mph.

Thursday Night

Mostly clear, with a low around 38. Northeast wind 7 to 9 mph becoming southeast after midnight.

Friday

A 20 percent chance of showers. Mostly sunny, with a high near 62. South southeast wind 8 to 10 mph, with gusts as high as 18 mph.

Friday Night

A 50 percent chance of showers, mainly after midnight. Partly cloudy, with a low around 44. South wind 9 to 14 mph, with gusts as high as 20 mph.

Saturday

Rain showers before 9am, then rain, possibly mixed with snow showers. Some thunder is also possible. High near 48. Southwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

Saturday Night

Rain and snow showers likely, becoming all snow after midnight. Some thunder is also possible. Mostly cloudy, with a low around 30. West wind 14 to 17 mph, with gusts as high as 26 mph.

Sunday

Snow likely. Mostly cloudy, with a high near 32.

Sunday Night

Snow likely. Mostly cloudy, with a low around 24.

Columbus Day

A chance of snow. Mostly cloudy, with a high near 28.

Monday Night

A chance of snow. Mostly cloudy, with a low around 24.

Tuesday

A chance of snow. Partly sunny, with a high near 32.