Casper Mountain, WY Weather & Growing Conditions
Today
77°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 77. East northeast wind 7 to 13 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Areas Of Smoke | 7 to 13 mph ENE | 1% |
| Tonight | 54°F | Areas Of Smoke | 2 to 16 mph ENE | 2% |
| Wednesday | 84°F | Sunny | 2 to 10 mph WNW | 0% |
| Wednesday Night | 58°F | Mostly Clear | 3 to 12 mph SSE | 0% |
| Thursday | 89°F | Sunny | 5 to 12 mph W | 0% |
| Thursday Night | 61°F | Clear | 2 to 12 mph SE | 0% |
| Friday | 94°F | Sunny | 3 to 10 mph WSW | 0% |
| Friday Night | 65°F | Mostly Clear | 9 mph WSW | 0% |
| Saturday | 94°F | Sunny | 7 to 15 mph W | 0% |
| Saturday Night | 66°F | Mostly Clear | 6 to 10 mph ENE | 0% |
| Sunday | 94°F | Sunny | 7 to 15 mph W | 1% |
| Sunday Night | 66°F | Partly Cloudy | 7 to 13 mph W | 5% |
| Monday | 93°F | Mostly Sunny | 7 to 12 mph W | 5% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 7 to 10 mph E | 18% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Casper Mountain, WY
Last spring frost
May 12
First fall frost
Oct 1
Growing season
143 days
Hardiness zone
5a
Explore more for Casper Mountain, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Casper 1Sw, Wy (7.5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.