Heavy Lake Effect Snow and Bitterly Cold Temperatures

A bitterly cold airmass will settle over much of the central and eastern U.S over the next several days. Well below normal temperatures and cold wind chills will be common. In addition, heavy lake effect snow will be possible especially downwind of Lakes Erie and Ontario, where up to one foot of additional snow is forecast by Sunday morning.
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Current conditions at

HELENA (HRWM8)

Lat: 46.74°NLon: -111.89°WElev: 3800ft.

NA

39°F

4°C

Humidity 77%
Wind Speed N 6 G 21 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Wind Chill35°F (2°C)
Last update 13 Feb 7:53 am MST
Extended Forecast for

11 Miles NNE Helena MT

  • Today

    Today: A 50 percent chance of showers, mainly before 11am.  Mostly cloudy, with a high near 45. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the morning. Winds could gust as high as 30 mph.

    Breezy.
    Chance
    Showers then
    Slight Chance
    Showers

    High: 45 °F

  • Tonight

    Tonight: A 20 percent chance of snow showers after 11pm.  Mostly cloudy, with a low around 32. West wind 13 to 18 mph becoming southwest 7 to 12 mph after midnight. Winds could gust as high as 21 mph.

    Slight Chance
    Snow Showers

    Low: 32 °F

  • Sunday

    Sunday: A chance of snow showers before 11am, then a slight chance of rain showers.  Mostly cloudy, with a high near 46. West wind 10 to 17 mph, with gusts as high as 22 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Chance
    Rain/Snow
    then Slight
    Chance
    Showers

    High: 46 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers, mainly after 11pm.  Mostly cloudy, with a low around 36. West southwest wind around 15 mph, with gusts as high as 23 mph.

    Chance
    Showers

    Low: 36 °F

  • Washington's
    Birthday

    Washington's Birthday: A 40 percent chance of showers.  Cloudy, with a high near 49. Breezy, with a west wind 20 to 22 mph, with gusts as high as 31 mph.

    Chance
    Showers and
    Breezy

    High: 49 °F

  • Monday
    Night

    Monday Night: A 20 percent chance of showers.  Mostly cloudy, with a low around 36. Breezy.

    Slight Chance
    Showers and
    Breezy

    Low: 36 °F

  • Tuesday

    Tuesday: Partly sunny, with a high near 51. Breezy.

    Partly Sunny
    and Breezy
    then Partly
    Sunny

    High: 51 °F

  • Tuesday
    Night

    Tuesday Night: Partly cloudy, with a low around 34.

    Partly Cloudy

    Low: 34 °F

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 51.

    Mostly Cloudy

    High: 51 °F

Detailed Forecast

Today
A 50 percent chance of showers, mainly before 11am. Mostly cloudy, with a high near 45. Breezy, with a west wind 11 to 16 mph increasing to 18 to 23 mph in the morning. Winds could gust as high as 30 mph.
Tonight
A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 32. West wind 13 to 18 mph becoming southwest 7 to 12 mph after midnight. Winds could gust as high as 21 mph.
Sunday
A chance of snow showers before 11am, then a slight chance of rain showers. Mostly cloudy, with a high near 46. West wind 10 to 17 mph, with gusts as high as 22 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
A 30 percent chance of showers, mainly after 11pm. Mostly cloudy, with a low around 36. West southwest wind around 15 mph, with gusts as high as 23 mph.
Washington's Birthday
A 40 percent chance of showers. Cloudy, with a high near 49. Breezy, with a west wind 20 to 22 mph, with gusts as high as 31 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 36. Breezy.
Tuesday
Partly sunny, with a high near 51. Breezy.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
Mostly cloudy, with a high near 51.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
A slight chance of showers. Mostly cloudy, with a high near 50.
Thursday Night
A slight chance of rain and snow showers. Mostly cloudy, with a low around 31.
Friday
Mostly sunny, with a high near 48.
Click Map For Forecast
Point Forecast:
11 Miles NNE Helena MT
 46.74°N 111.89°W (Elev. 3717 ft)
4:36 am MST Feb 13, 2016
8am MST Feb 13, 2016-6pm MST Feb 19, 2016
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database