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Active weather from Northern Rockies to Upper Midwest

A storm system in the northern U.S. will bring a variety of weather across several states from the Northern Rockies to the Upper Midwest on Saturday. Several inches of early-season snow are forecast in the higher elevations of Idaho and western Montana. Locally-heavy rain will accompany strong thunderstorms in the northern Plains and Upper Midwest.
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Current conditions at

Helena Regional Airport (KHLN)

Lat: 46.60445°NLon: 111.9892°WElev: 3874ft.

Overcast

49°F

9°C

Humidity 83%
Wind Speed W 5 MPH
Barometer 29.90 in (1013.2 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Wind Chill47°F (8°C)
Last update 05 Sep 3:53 am MDT
Extended Forecast for

10 Miles ENE East Helena MT

  • Overnight

    Overnight: Rain and possibly a thunderstorm.  Low around 45. Calm wind.  Chance of precipitation is 80%.

    Rain

    Low: 45 °F

  • Saturday

    Saturday: Rain and possibly a thunderstorm.  High near 61. West wind 6 to 10 mph.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Rain

    High: 61 °F

  • Saturday
    Night

    Saturday Night: Rain likely and possibly a thunderstorm before midnight, then a chance of rain and thunderstorms after midnight.  Cloudy, with a low around 40. Southwest wind 6 to 10 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Rain Likely
    then Chance
    Rain

    Low: 40 °F

  • Sunday

    Sunday: A 20 percent chance of showers before noon.  Partly sunny, with a high near 63. Southwest wind 8 to 18 mph, with gusts as high as 25 mph.

    Slight Chance
    Showers then
    Mostly Sunny

    High: 63 °F

  • Sunday
    Night

    Sunday Night: Partly cloudy, with a low around 39. West wind 6 to 11 mph becoming light west southwest  after midnight.

    Partly Cloudy

    Low: 39 °F

  • Labor
    Day

    Labor Day: Mostly sunny, with a high near 64.

    Mostly Sunny

    High: 64 °F

  • Monday
    Night

    Monday Night: Partly cloudy, with a low around 40.

    Partly Cloudy

    Low: 40 °F

  • Tuesday

    Tuesday: Mostly sunny, with a high near 70.

    Mostly Sunny

    High: 70 °F

  • Tuesday
    Night

    Tuesday Night: A slight chance of showers before midnight.  Partly cloudy, with a low around 47.

    Slight Chance
    Showers then
    Partly Cloudy

    Low: 47 °F

Detailed Forecast

Overnight
Rain and possibly a thunderstorm. Low around 45. Calm wind. Chance of precipitation is 80%.
Saturday
Rain and possibly a thunderstorm. High near 61. West wind 6 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Rain likely and possibly a thunderstorm before midnight, then a chance of rain and thunderstorms after midnight. Cloudy, with a low around 40. Southwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A 20 percent chance of showers before noon. Partly sunny, with a high near 63. Southwest wind 8 to 18 mph, with gusts as high as 25 mph.
Sunday Night
Partly cloudy, with a low around 39. West wind 6 to 11 mph becoming light west southwest after midnight.
Labor Day
Mostly sunny, with a high near 64.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 70.
Tuesday Night
A slight chance of showers before midnight. Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 69.
Wednesday Night
Partly cloudy, with a low around 43.
Thursday
Sunny, with a high near 72.
Thursday Night
Mostly clear, with a low around 47.
Friday
Sunny, with a high near 76.
  Click Map For Forecast
Point Forecast:
10 Miles ENE East Helena MT
 46.65°N 111.75°W (Elev. 3862 ft)
2:49 am MDT Sep 5, 2015
4am MDT Sep 5, 2015-6pm MDT Sep 11, 2015
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Graph

National Digital Forecast Database