Heavy Rain and Thunderstorms in the Plains; Snow in the Northern Rockies; Heavy Rain in Guam

A storm system moving over the Rockies today will bring marginal risks for excessive rainfall and severe thunderstorms from parts of New Mexico into western South Dakota. Heavy snow expected from northwestern Wyoming into southern Montana. Ongoing heavy showers and thunderstorms from Invest 96W could result in localized flash flooding, particularly in central or southern Guam early this morning. Read More >

Current conditions at

Helena Regional Airport (KHLN)

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

Overcast

37°F

3°C

Humidity	80%
Wind Speed	WNW 8 MPH
Barometer	30.07 in (1018.29 mb)
Dewpoint	32°F (0°C)
Visibility	10.00 mi
Wind Chill	31°F (-1°C)
Last update	15 Oct 09:35 AM MDT

More Information:

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

Extended Forecast for

8 Miles SSE Marysville MT

Today
High: 46 °F
Chance
Rain/Snow and
Patchy Fog
then Chance
Rain
Tonight
Low: 35 °F
Mostly Cloudy
then Chance
Rain
Thursday
High: 49 °F
Chance Rain
Thursday Night
Low: 37 °F
Partly Cloudy
Friday
High: 51 °F
Chance Rain
Friday Night
Low: 34 °F
Chance Rain
then Chance
Rain/Snow
Saturday
High: 53 °F
Mostly Sunny
Saturday Night
Low: 42 °F
Partly Cloudy
then Slight
Chance Rain
Sunday
High: 56 °F
Rain Likely

Detailed Forecast

Today

A chance of rain and snow before noon, then a chance of rain after 2pm. Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 46. Calm wind becoming north northeast around 5 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Tonight

A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 35. Calm wind becoming west around 5 mph after midnight.

Thursday

A chance of rain before 8am, then a chance of rain after noon. Partly sunny, with a high near 49. West wind 5 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.

Thursday Night

Partly cloudy, with a low around 37. West southwest wind 10 to 17 mph, with gusts as high as 34 mph.

Friday

A 30 percent chance of rain, mainly after noon. Mostly sunny, with a high near 51. West southwest wind 16 to 18 mph, with gusts as high as 32 mph.

Friday Night

A chance of rain before 3am, then a chance of rain and snow. Mostly cloudy, with a low around 34. West wind around 15 mph, with gusts as high as 30 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

Saturday

Mostly sunny, with a high near 53. West southwest wind 11 to 14 mph, with gusts as high as 24 mph.

Saturday Night

A slight chance of rain after midnight. Partly cloudy, with a low around 42. South southwest wind 9 to 15 mph, with gusts as high as 30 mph.

Sunday

Rain likely, mainly after noon. Partly sunny, with a high near 56.

Sunday Night

Rain likely before midnight, then rain and snow likely. Mostly cloudy, with a low around 37.

Monday

Rain and snow likely. Partly sunny, with a high near 47.

Monday Night

A slight chance of rain and snow. Partly cloudy, with a low around 32.