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Swamp Lake, WY Weather Forecast
Swamp Lake, WY Weather Forecast Date: 432 PM MDT Mon Aug 31 2026
The area/counties/county of: Yellowstone National Park, including the cities of: Lake, Mammoth, and Old Faithful.or toggle through each period.
This Afternoon... Mostly sunny. Near steady temperature in the mid 60s. Southwest winds 10 to 15 mph with gusts up to 25 mph.
Tonight... Mostly clear in the evening, then mostly cloudy with numerous showers with isolated thunderstorms after midnight. Lows in the lower 40s. South winds around 10 mph. Chance of rain 60%.
Tuesday... Cloudy with rain showers with isolated thunderstorms in the morning, then partly cloudy with scattered rain showers and thunderstorms in the afternoon. Highs in the lower 60s. South winds around 10 mph. Chance of rain 80%.
Tuesday Night... Mostly cloudy in the evening, then becoming partly cloudy. Scattered thunderstorms in the evening. Numerous showers. Lows in the lower 40s. South winds around 10 mph. Gusts up to 25 mph after midnight. Chance of rain 60%.
Wednesday... Mostly sunny and breezy. Highs around 60. South winds 15 to 20 mph. Gusts up to 30 mph, increasing to 40 mph in the afternoon.
Wednesday Night... Partly cloudy and breezy. Lows in the upper 30s.
Thursday... Mostly sunny and breezy. Highs around 60.
Thursday Night... Mostly clear. Lows in the upper 30s.
Friday... Mostly sunny and breezy. Highs in the lower 60s.
Friday Night... Mostly clear in the evening, then becoming partly cloudy. A slight chance of. Lows in the lower 40s.
Saturday... Partly cloudy in the morning, then clearing. A slight chance of. Highs in the mid 60s.
Saturday Night... A slight chance of thunderstorms in the evening. Partly cloudy with a chance of showers. Lows in the lower 40s. Chance of rain 40%.
POP = Probability of Precipitation
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