| National Weather Service Forecast for:
Old Faithful WY Issued by: National Weather Service Riverton, WY |
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| Updated: 6:47 pm MDT Jun 29, 2026 | ||||||||||||||||||
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| Tonight |
Showers likely and possibly a thunderstorm before 11pm, then a chance of showers. Mostly cloudy, with a low around 32. South wind 5 to 10 mph. Chance of precipitation is 70%. |
| Tuesday |
Areas of frost before 8am. Otherwise, partly sunny, with a high near 60. South southwest wind 6 to 10 mph. |
| Tuesday Night |
Mostly clear, with a low around 32. Southwest wind 5 to 9 mph becoming calm in the evening. |
| Wednesday |
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 65. Calm wind becoming southwest 5 to 8 mph in the morning. Winds could gust as high as 22 mph. |
| Wednesday Night |
Partly cloudy, with a low around 35. Southwest wind around 6 mph becoming calm in the evening. Winds could gust as high as 21 mph. |
| Thursday |
Mostly sunny, with a high near 68. Calm wind becoming southwest 5 to 9 mph in the morning. Winds could gust as high as 24 mph. |
| Thursday Night |
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 38. Southwest wind around 5 mph becoming calm after midnight. |
| Friday |
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 69. |
| Friday Night |
A 30 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 36. |
| Independence Day |
Sunny, with a high near 70. |
| Saturday Night |
Clear, with a low around 38. |
| Sunday |
Sunny, with a high near 76. |
| Sunday Night |
Mostly clear, with a low around 42. |
| Monday |
Sunny, with a high near 79. |
Forecast from NOAA-NWS for Old Faithful WY.