Montana Department of Transportation

Malcolm “Mack” Long, Director

COVID-19

View the Governor’s Coronavirus Task Force site for more information.

Main Content

Accidents and Incidents Report

Yellowstone National Park Forecast

FPUS55 KRIW 102229

ZFPRIW

FPUS55 KRIW 102227

ZFPRIW



Zone Forecast Product for Western and Central Wyoming

National Weather Service Riverton WY

427 PM MDT Mon May 10 2021



WYZ001-111000-

Yellowstone National Park-

Including the cities of Lake, Mammoth, and Old Faithful

427 PM MDT Mon May 10 2021



.LATE THIS AFTERNOON...Cloudy with snow showers likely and slight

chance of thunderstorms. Little or no new snow accumulation.

Highs 36 to 42. Chance of precipitation 60 percent. 

.TONIGHT...Mostly cloudy until early morning then becoming partly

cloudy. Snow showers likely early in the evening. Chance of

thunderstorms early in the evening. Chance of snow showers. Snow

accumulation up to 1 inch. Lows 19 to 25. Chance of precipitation

60 percent. 

.TUESDAY...Partly cloudy until late afternoon then becoming

mostly cloudy. Scattered snow showers in the morning, then

numerous snow showers, possibly mixed with rain showers and

thunderstorms in the afternoon. Little or no snow accumulation.

Highs 41 to 49. Chance of precipitation 60 percent. 

.TUESDAY NIGHT...Partly cloudy then becoming mostly clear after

midnight then becoming partly cloudy. Isolated rain showers and

snow showers early in the evening, then isolated snow showers

late in the evening. Lows 20 to 26. Chance of precipitation

20 percent. 

.WEDNESDAY...Partly cloudy. Highs 46 to 54. 

.WEDNESDAY NIGHT...Mostly cloudy in the evening then becoming

partly cloudy. Lows 27 to 33. 

.THURSDAY...Partly cloudy. Highs 52 to 60. 

.THURSDAY NIGHT...Mostly cloudy. Isolated rain showers and snow

showers in the evening. Lows 31 to 37. Chance of precipitation

20 percent. 

.FRIDAY...Mostly cloudy. Isolated rain showers and snow showers

in the morning, then scattered rain showers and isolated

thunderstorms in the afternoon. Some thunderstorms may produce

gusty winds and small hail in the afternoon. Highs 50 to 58.

Chance of precipitation 40 percent. 

.FRIDAY NIGHT...Mostly cloudy with scattered rain showers,

possibly mixed with snow showers. Lows 30 to 36. Chance of

precipitation 30 percent. 

.SATURDAY...Mostly cloudy. Scattered rain showers and snow

showers in the morning, then numerous rain showers in the

afternoon. Highs 49 to 57. Chance of precipitation 60 percent. 

.SATURDAY NIGHT...Mostly cloudy in the evening then becoming

partly cloudy. Scattered rain showers, possibly mixed with snow

showers. Lows 30 to 36. Chance of precipitation 40 percent. 

.SUNDAY...Partly cloudy. Scattered rain showers and snow showers

in the morning, then numerous rain showers in the afternoon.

Highs 47 to 55. Chance of precipitation 60 percent. 

.SUNDAY NIGHT...Partly cloudy. Scattered rain showers, possibly

mixed with snow showers in the evening. Lows 28 to 34. Chance of

precipitation 30 percent. 

.MONDAY...Partly cloudy with isolated rain showers and snow

showers in the morning, then mostly sunny with scattered rain

showers in the afternoon. Highs 50 to 58. Chance of precipitation

30 percent. 



--------------------------------