Yellowstone National Park Forecast

FPUS55 KRIW 182024

ZFPRIW



Zone Forecast Product for Western and Central Wyoming

National Weather Service Riverton WY

222 PM MDT Sat May 18 2024



WYZ020-182200-

Natrona County Lower Elevations-

WYZ001-182200-

Yellowstone National Park-

Including the cities of Lake, Mammoth, and Old Faithful

222 PM MDT Sat May 18 2024



.THIS AFTERNOON...Partly cloudy and breezy. Highs around 50.

Southwest winds 15 to 20 mph with gusts up to 35 mph. 

.TONIGHT...Mostly cloudy. Scattered snow showers after midnight.

Breezy with lows in the lower 30s. Southwest winds 20 to 25 mph

with gusts up to 35 mph, diminishing to around 10 mph with gusts

up to 20 mph after midnight. Chance of snow 30 percent. 

.SUNDAY...Partly cloudy with scattered snow and rain showers.

Isolated thunderstorms in the afternoon. Breezy with highs in the

mid 40s. Southwest winds 15 to 25 mph with gusts up to 40 mph.

Chance of precipitation 30 percent. 

.SUNDAY NIGHT...Mostly cloudy with scattered snow showers with

isolated thunderstorms in the evening, then partly cloudy with

isolated snow showers after midnight. Breezy with lows in the mid

20s. Northwest winds 15 to 20 mph with gusts up to 30 mph,

becoming northeast around 10 mph after midnight. Chance of snow

30 percent. 

.MONDAY...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. Little or no

snow accumulation. Highs in the mid 40s. West winds around 10 mph

with gusts up to 20 mph in the afternoon. Chance of snow

70 percent. 

.MONDAY NIGHT...Mostly cloudy. Snow showers likely with a chanceof thunderstorms in the evening, then a chance of snow showers

after midnight. Light snow accumulation possible. Lows in the

upper 20s. Chance of snow 60 percent. 

.TUESDAY...Mostly cloudy with snow showers likely. A chance of

thunderstorms and rain showers likely in the afternoon. New

little or no snow accumulation. Highs in the mid 40s. Chance of

precipitation 70 percent. 

.TUESDAY NIGHT...Mostly cloudy with a chance of snow showers with

a slight chance of rain showers in the evening, then partly

cloudy after midnight. Lows in the upper 20s. Chance of

precipitation 30 percent. 

.WEDNESDAY...Mostly cloudy. A chance of snow showers in the

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

chance of thunderstorms in the afternoon. Little or no snow

accumulation. Highs in the mid 40s. Chance of precipitation

70 percent. 

.WEDNESDAY NIGHT...Mostly cloudy with rain showers likely. Snow

showers. Light snow accumulation. Lows around 30. Chance of

precipitation 80 percent. 

.THURSDAY...Snow showers likely in the morning, then snow showers

with possible rain showers and thunderstorms likely in the

afternoon. New light snow accumulation. Highs in the lower 40s.

Chance of precipitation 80 percent. 

.THURSDAY NIGHT...Mostly cloudy in the evening, then becoming

partly cloudy. A chance of rain showers in the evening. A chance

of snow showers. New little or no snow accumulation. Lows in the

mid 20s. Chance of precipitation 50 percent. 

.FRIDAY...Mostly cloudy with a chance of snow showers. A chance

of rain showers in the afternoon. Little or no snow accumulation.

Highs in the mid 40s. Chance of precipitation 50 percent. 



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