Tracking Late December Winter Storm Expected to Impact the Northern Plains through the Northeast U.S.

A winter storm system will rapidly intensify over the Midwest on Sunday and track through the Great Lakes on Monday. Periods of heavy snow are anticipated across the Upper Great Lakes late Sunday and continuing into Monday. At least 1/10 inch of ice accumulation is expected from a wintry mix across much of the interior Northeast U.S. starting Sunday afternoon. Read More >

Current conditions at

YELLOWSTONE MTN. (YEFO3)

Lat: 44.59222°NLon: 122.42778°WElev: 3119.0ft.

NA

33°F

1°C

Humidity 99%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 27 Dec 10:17 AM PST
Extended Forecast for

5 Miles ESE Lacomb OR

  • Today

    Today: A slight chance of rain and snow showers before 2pm, then a slight chance of rain showers between 2pm and 3pm, then a slight chance of rain and snow showers after 3pm.  Snow level 2100 feet. Mostly cloudy, with a high near 37. Light west southwest wind.  Chance of precipitation is 20%.

    High: 37 °F

    Slight Chance
    Rain/Snow

  • Tonight

    Tonight: A slight chance of rain and snow showers between 9pm and 10pm.  Widespread frost after midnight.  Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 30. Calm wind.  Chance of precipitation is 20%.

    Low: 30 °F

    Slight Chance
    Rain/Snow
    then Frost

  • Sunday

    Sunday: Widespread frost, mainly before 10am.  Otherwise, mostly sunny, with a high near 40. Light and variable wind.

    High: 40 °F

    Frost then
    Mostly Sunny

  • Sunday Night

    Sunday Night: Areas of frost before 10pm.  Otherwise, mostly cloudy, with a low around 33. East wind 3 to 5 mph.

    Low: 33 °F

    Areas Frost
    then Mostly
    Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 46. East wind around 5 mph becoming calm  in the morning.

    High: 46 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Areas of frost after 1am.  Otherwise, mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy
    then Areas
    Frost

  • Tuesday

    Tuesday: Widespread frost, mainly before 8am.  Otherwise, partly sunny, with a high near 46.

    High: 46 °F

    Frost then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

Detailed Forecast

Today
A slight chance of rain and snow showers before 2pm, then a slight chance of rain showers between 2pm and 3pm, then a slight chance of rain and snow showers after 3pm. Snow level 2100 feet. Mostly cloudy, with a high near 37. Light west southwest wind. Chance of precipitation is 20%.
Tonight
A slight chance of rain and snow showers between 9pm and 10pm. Widespread frost after midnight. Otherwise, mostly cloudy, then gradually becoming mostly clear, with a low around 30. Calm wind. Chance of precipitation is 20%.
Sunday
Widespread frost, mainly before 10am. Otherwise, mostly sunny, with a high near 40. Light and variable wind.
Sunday Night
Areas of frost before 10pm. Otherwise, mostly cloudy, with a low around 33. East wind 3 to 5 mph.
Monday
Mostly sunny, with a high near 46. East wind around 5 mph becoming calm in the morning.
Monday Night
Areas of frost after 1am. Otherwise, mostly cloudy, with a low around 34.
Tuesday
Widespread frost, mainly before 8am. Otherwise, partly sunny, with a high near 46.
Tuesday Night
Mostly cloudy, with a low around 36.
Wednesday
Mostly sunny, with a high near 48.
Wednesday Night
A slight chance of rain after 10pm. Mostly cloudy, with a low around 39.
New Year's Day
A chance of rain. Mostly cloudy, with a high near 46.
Thursday Night
Rain likely, possibly mixed with snow. Cloudy, with a low around 39.
Friday
Rain likely, possibly mixed with snow. Snow level 3200 feet. Cloudy, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles ESE Lacomb OR
 44.57°N 122.64°W (Elev. 1775 ft)
10:41 am PST Dec 27, 2025
11am PST Dec 27, 2025-6pm PST Jan 2, 2026
 
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Additional Resources

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