National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Severe Thunderstorms in Portions of the Mississippi Valley and Great Lakes

A few severe thunderstorms with large hail, are expected across parts of the middle and upper Mississippi River Valley tonight through early morning. Snow and a wintry mix overnight in the Upper Midwest into the Great Lakes can cause hazardous travel conditions. Fire weather concerns continue for a large portion of the central and southern High Plains and Four Corners region this evening. Read More >

Hazardous Weather Conditions

Current conditions at

Yellowstone Lake (KP60)

Lat: 44.54444°NLon: 110.42111°WElev: 7835.0ft.

NA

46°F

8°C

Humidity 38%
Wind Speed NA NA MPH
Barometer 29.91 in (1012.87 mb)
Dewpoint 22°F (-6°C)
Visibility NA
Last update 30 Mar 05:56 PM MDT
Extended Forecast for

Lake WY

  • Tonight

    Tonight: Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Low around 25. West southwest wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.

    Low: 25 °F

    Rain/Snow
    then Snow
    Showers

  • Tuesday

    Tuesday: Snow showers before 3pm, then scattered rain and snow showers. Some thunder is also possible. High near 41. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    High: 41 °F

    Snow Showers
    then
    Rain/Snow

  • Tuesday Night

    Tuesday Night: Snow showers, possibly mixed with rain before midnight, then scattered snow showers. Some thunder is also possible. Low around 27. South southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Rain/Snow
    then
    Scattered
    Snow Showers

  • Wednesday

    Wednesday: Snow showers, mainly after noon. Some thunder is also possible. High near 42. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Scattered
    Snow Showers
    then Snow
    Showers

  • Wednesday Night

    Wednesday Night: Snow showers. Low around 25. South southwest wind 3 to 5 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    Low: 25 °F

    Snow Showers

  • Thursday

    Thursday: Snow showers. Some thunder is also possible. High near 36. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 100%.

    High: 36 °F

    Snow Showers

  • Thursday Night

    Thursday Night: Snow showers. Low around 16. West southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.

    Low: 16 °F

    Snow Showers

  • Friday

    Friday: Snow showers likely. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.

    High: 35 °F

    Snow Showers
    Likely

  • Friday Night

    Friday Night: A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 14.

    Low: 14 °F

    Chance Snow
    Showers then
    Mostly Cloudy

Detailed Forecast

Tonight
Rain and snow showers, becoming all snow after 9pm. Some thunder is also possible. Low around 25. West southwest wind 5 to 10 mph becoming light after midnight. Chance of precipitation is 80%. Total nighttime snow accumulation of less than one inch possible.
Tuesday
Snow showers before 3pm, then scattered rain and snow showers. Some thunder is also possible. High near 41. Calm wind becoming south southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday Night
Snow showers, possibly mixed with rain before midnight, then scattered snow showers. Some thunder is also possible. Low around 27. South southwest wind around 6 mph becoming calm in the evening. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday
Snow showers, mainly after noon. Some thunder is also possible. High near 42. Calm wind becoming southwest around 5 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers. Low around 25. South southwest wind 3 to 5 mph. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday
Snow showers. Some thunder is also possible. High near 36. Light south southwest wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 25 mph. Chance of precipitation is 100%.
Thursday Night
Snow showers. Low around 16. West southwest wind 7 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 80%.
Friday
Snow showers likely. Mostly cloudy, with a high near 35. Chance of precipitation is 70%.
Friday Night
A 30 percent chance of snow showers before midnight. Mostly cloudy, with a low around 14.
Saturday
Mostly sunny, with a high near 42.
Saturday Night
Mostly clear, with a low around 18.
Sunday
Sunny, with a high near 47.
Sunday Night
Partly cloudy, with a low around 21.
Monday
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Lake WY
 44.56°N 110.38°W (Elev. 7730 ft)
Last Update:
6:32 pm MDT Mar 30, 2026
Forecast Valid:
6pm MDT Mar 30, 2026-6pm MDT Apr 6, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation