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 Regional Airport (KHLN)

Lat: 46.58°NLon: -112.04°WElev: 3874ft.

A Few Clouds

48°F

9°C

Humidity 61%
Wind Speed NNW 3 MPH
Barometer 30.16 in (1023.8 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Last update 12 Feb 12:53 pm MST
Extended Forecast for

2 Miles S Helena MT

  • This
    Afternoon

    This Afternoon: A 20 percent chance of rain before 2pm.  Mostly cloudy, with a high near 49. Calm wind becoming west around 5 mph.

    Slight Chance
    Rain

    High: 49 °F

  • Tonight

    Tonight: Partly cloudy, with a low around 32. South southwest wind around 5 mph.

    Partly Cloudy

    Low: 32 °F

  • Saturday

    Saturday: A 20 percent chance of showers before 11am.  Partly sunny, with a high near 44. Breezy, with a west wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph.

    Slight Chance
    Showers then
    Mostly Sunny
    and Breezy

    High: 44 °F

  • Saturday
    Night

    Saturday Night: A 20 percent chance of snow showers after 11pm.  Mostly cloudy, with a low around 32. West southwest wind 9 to 14 mph, with gusts as high as 20 mph.

    Slight Chance
    Snow Showers

    Low: 32 °F

  • Sunday

    Sunday: A chance of snow showers before 11am, then a chance of rain and snow showers.  Mostly cloudy, with a high near 44. West wind 10 to 17 mph, with gusts as high as 26 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Chance
    Rain/Snow

    High: 44 °F

  • Sunday
    Night

    Sunday Night: A 30 percent chance of showers, mainly after 11pm.  Cloudy, with a low around 35.

    Chance
    Showers

    Low: 35 °F

  • Washington's
    Birthday

    Washington's Birthday: A 30 percent chance of showers.  Mostly cloudy, with a high near 50.

    Chance
    Showers

    High: 50 °F

  • Monday
    Night

    Monday Night: A chance of showers.  Mostly cloudy, with a low around 37.

    Chance
    Showers

    Low: 37 °F

  • Tuesday

    Tuesday: A slight chance of showers.  Partly sunny, with a high near 49. Breezy.

    Slight Chance
    Showers and
    Breezy

    High: 49 °F

Detailed Forecast

This Afternoon
A 20 percent chance of rain before 2pm. Mostly cloudy, with a high near 49. Calm wind becoming west around 5 mph.
Tonight
Partly cloudy, with a low around 32. South southwest wind around 5 mph.
Saturday
A 20 percent chance of showers before 11am. Partly sunny, with a high near 44. Breezy, with a west wind 7 to 12 mph increasing to 18 to 23 mph in the afternoon. Winds could gust as high as 34 mph.
Saturday Night
A 20 percent chance of snow showers after 11pm. Mostly cloudy, with a low around 32. West southwest wind 9 to 14 mph, with gusts as high as 20 mph.
Sunday
A chance of snow showers before 11am, then a chance of rain and snow showers. Mostly cloudy, with a high near 44. West wind 10 to 17 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Sunday Night
A 30 percent chance of showers, mainly after 11pm. Cloudy, with a low around 35.
Washington's Birthday
A 30 percent chance of showers. Mostly cloudy, with a high near 50.
Monday Night
A chance of showers. Mostly cloudy, with a low around 37.
Tuesday
A slight chance of showers. Partly sunny, with a high near 49. Breezy.
Tuesday Night
Partly cloudy, with a low around 34.
Wednesday
Partly sunny, with a high near 48.
Wednesday Night
A slight chance of showers. Mostly cloudy, with a low around 32.
Thursday
A slight chance of showers. Partly sunny, with a high near 47.
Click Map For Forecast
Point Forecast:
2 Miles S Helena MT
 46.58°N 112.04°W (Elev. 4413 ft)
9:41 am MST Feb 12, 2016
1pm MST Feb 12, 2016-6pm MST Feb 18, 2016
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database