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

43°F

6°C

Humidity	75%
Wind Speed	N 0 MPH
Barometer	29.97 in (1014.9 mb)
Dewpoint	36°F (2°C)
Visibility	10.00 mi
Last update	15 Oct 04:35 PM MDT

More Information:

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

Extended Forecast for

3 Miles WNW Helena MT

This Afternoon
High: 49 °F
Slight Chance
Rain
Tonight
Low: 35 °F
Mostly Cloudy
Thursday
High: 53 °F
Slight Chance
Rain then
Mostly Sunny
Thursday Night
Low: 36 °F
Mostly Clear
Friday
High: 56 °F
Mostly Sunny
then Slight
Chance Rain
Friday Night
Low: 34 °F
Chance Rain
Saturday
High: 56 °F
Mostly Sunny
Saturday Night
Low: 40 °F
Partly Cloudy
Sunday
High: 61 °F
Rain Likely

Detailed Forecast

This Afternoon

A 20 percent chance of rain before 5pm. Mostly cloudy, with a high near 49. Calm wind.

Tonight

Mostly cloudy, with a low around 35. Light and variable wind.

Thursday

A 20 percent chance of rain before 7am. Mostly cloudy, then gradually becoming sunny, with a high near 53. Calm wind becoming west 5 to 8 mph in the afternoon.

Thursday Night

Mostly clear, with a low around 36. West southwest wind 7 to 14 mph, with gusts as high as 26 mph.

Friday

A 20 percent chance of rain after noon. Mostly sunny, with a high near 56. West southwest wind 10 to 15 mph, with gusts as high as 26 mph.

Friday Night

A 40 percent chance of rain, mainly before midnight. Mostly cloudy, with a low around 34. West wind 10 to 14 mph, with gusts as high as 28 mph.

Saturday

Mostly sunny, with a high near 56. West southwest wind 8 to 10 mph, with gusts as high as 18 mph.

Saturday Night

Partly cloudy, with a low around 40. South southwest wind 6 to 14 mph, with gusts as high as 26 mph.

Sunday

Rain likely, mainly after noon. Mostly cloudy, with a high near 61.