Yellowstone National Park, WY Weather Tomorrow

Check tomorrow's weather in Yellowstone National Park with a detailed 5 day forecast covering precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Yellowstone National Park area.
Updated: Mon Oct 12th 2026 10:15 PM MDT
Yellowstone National Park, WY Weather – 10-12 – Fog
41° / 14°
Fog
Yellowstone National Park is set for fog with temperatures peaking at 41°F and dipping to 14°F. Rainfall predicted to have a 67% chance with an estimated 0.02in. Snow is likely with a 67% chance with an estimated 0.1in. Winds will be light at 4mph and gusts of 2.5mph at 11 PM. High humidity with average of 98% is anticipated, the maximum being 98% at 11 PM and 98% being its lowest at 11 PM. Barometric pressure is its highest of 29.96inHg at 11 PM, a lowest point of 29.96inHg at 11 PM with an avg 29.96inHg.
Yellowstone National Park, WY Weather – 10-13 – Freezing Fog
42° / 18°

Weather Tomorrow

Freezing Fog
Freezing Fog is in the forecast for Yellowstone National Park, with a high of 42°F and a low of 18°F. There's a moderate 40% chance of rainfall with an estimated 0in. Snow is likely with a 38% chance. Winds will be light at 6mph and gusts of 13.4mph at 10 PM. High humidity with average of 98% is anticipated, the maximum being 99% at 5 AM and 95% being its lowest at 2 PM. Barometric pressure is its highest of 30.3inHg at 10 PM, a lowest point of 29.95inHg at 1 AM with an avg 30.05inHg.
Yellowstone National Park, WY Weather – 10-14 – Freezing Fog
46° / 15°
Freezing Fog
Yellowstone National Park may see freezing Fog, with daytime highs of 46°F and overnight lows near 15°F. There's a moderate 39% chance of rainfall with an estimated 0in. Snow is likely with a 35% chance. Winds will be light at 6mph and gusts of 11.9mph at 8 PM. High humidity with average of 94% is anticipated, the maximum being 99% at 6 AM and 82% being its lowest at 4 PM. Barometric pressure is its highest of 30.36inHg at 5 AM, a lowest point of 30.08inHg at 3 PM with an avg 30.23inHg.
Yellowstone National Park, WY Weather – 10-15 – Sunny
53° / 19°
Sunny
It will be sunny in Yellowstone National Park, with a high of 53°F and a low of 19°F. There might be light rainfall having a 12% chance. Snow is likely with a 9% chance. Winds will be light at 6mph and gusts of 8.5mph at 5 PM. High humidity with average of 81% is anticipated, the maximum being 98% at 12 AM and 53% being its lowest at 3 PM. Barometric pressure is its highest of 30.68inHg at 8 AM, a lowest point of 30.38inHg at 12 AM with an avg 30.52inHg.
Yellowstone National Park, WY Weather – 10-16 – Sunny
59° / 22°
Sunny
Yellowstone National Park could see a sunny day with daytime highs of 59°F and nighttime lows near 22°F. There's a very small chance of rainfall, only about 5%. Snow is likely with a 14% chance. Winds will be light at 9mph and gusts of 18.3mph at 7 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 84% at 8 AM and 38% being its lowest at 2 PM. Barometric pressure is its highest of 30.67inHg at 2 AM, a lowest point of 30.28inHg at 4 PM with an avg 30.49inHg.
Yellowstone National Park, WY Weather – 10-17 – Sunny
58° / 24°
Sunny
Yellowstone National Park could see a sunny day with daytime highs of 58°F and nighttime lows near 24°F. There's a very small chance of rainfall, only about 7%. Snow is likely with a 6% chance. Winds will be light at 10mph and gusts of 15mph at 11 AM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 76% at 5 AM and 34% being its lowest at 3 PM. Barometric pressure is its highest of 30.4inHg at 12 AM, a lowest point of 30.04inHg at 3 PM with an avg 30.22inHg.

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