Yellowstone National Park Forecast

FPUS55 KRIW 161621

ZFPRIW



Zone Forecast Product for Western and Central Wyoming

National Weather Service Riverton WY

1018 AM MDT Thu Apr 16 2026



WYZ020-162200-

Natrona County Lower Elevations-

WYZ001-162200-

Yellowstone National Park-

Including the cities of Lake, Mammoth, and Old Faithful

1018 AM MDT Thu Apr 16 2026



...WINTER STORM WARNING REMAINS IN EFFECT UNTIL 6 AM MDT FRIDAY...



.TODAY...Snow showers with a slight chance of thunderstorms.

Areas of blowing snow this morning. Patchy blowing snow this

afternoon with visibility one quarter mile or less at times. Snow

accumulation of 1 to 9 inches. Breezy with highs in the mid 20s.

Southwest winds 15 to 20 mph with gusts up to 30 mph. Chance of

snow 80 percent. 

.TONIGHT...Mostly cloudy with snow showers in the evening, then

partly cloudy with a chance of snow showers after midnight. New

snow accumulation up to 3 inches. Cold with lows 9 to 15 above.

Northwest winds 10 to 15 mph. Chance of snow 80 percent. 

.FRIDAY...Partly cloudy with a chance of snow showers in the

morning, then mostly cloudy with snow showers likely with a

slight chance of thunderstorms in the afternoon. Storm total snowaccumulation of 4 to 6 inches possible. Highs in the upper 20s.

West winds 10 to 15 mph with gusts up to 30 mph. Chance of snow

60 percent. 

.FRIDAY NIGHT...Partly cloudy. A chance of snow showers in the

evening. Cold with lows 6 to 12 above. West winds 10 to 15 mph

with gusts up to 30 mph in the evening. Chance of snow

30 percent. 

.SATURDAY...Sunny. Highs in the upper 30s. Southwest winds 10 to

15 mph with gusts up to 30 mph. 

.SATURDAY NIGHT...Mostly clear. Cold with lows 14 to 20. 

.SUNDAY...Mostly sunny in the morning, then becoming partly

cloudy. Highs in the upper 40s. 

.SUNDAY NIGHT...Partly cloudy. Lows in the mid 20s. 

.MONDAY...Partly cloudy in the morning, then clearing. Highs in

the mid 50s. 

.MONDAY NIGHT...Mostly clear. Lows in the lower 30s. 

.TUESDAY...Mostly sunny in the morning, then becoming partly

cloudy. A slight chance of. Highs in the upper 50s. 

.TUESDAY NIGHT...Partly cloudy with a chance of rain and snow

showers. Lows in the lower 30s. Chance of precipitation

30 percent. 

.WEDNESDAY...Partly cloudy. A chance of rain and snow showers in

the morning, then rain showers, snow showers likely with a slight

chance of thunderstorms in the afternoon. Little or no snow

accumulation. Highs in the lower 50s. Chance of precipitation

60 percent. 



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