Cheyenne, WY Weather & Growing Conditions
Today
71°F
Areas Of Smoke then Mostly Sunny
Areas of smoke before noon. Mostly sunny, with a high near 71. Southeast wind 10 to 15 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 71°F | Areas Of Smoke then Mostly Sunny | 10 to 15 mph SE | 3% |
| Tonight | 49°F | Partly Cloudy | 10 to 15 mph SSE | 9% |
| Wednesday | 80°F | Sunny | 5 to 10 mph E | 4% |
| Wednesday Night | 52°F | Mostly Clear | 5 to 15 mph S | 1% |
| Thursday | 90°F | Sunny | 5 to 15 mph WNW | 1% |
| Thursday Night | 57°F | Mostly Clear | 5 to 15 mph NNW | 2% |
| Friday | 94°F | Sunny | 5 to 10 mph NNW | 0% |
| Friday Night | 60°F | Mostly Clear | 10 mph S | 0% |
| Saturday | 96°F | Sunny | 10 to 15 mph NW | 1% |
| Saturday Night | 61°F | Partly Cloudy | 5 to 15 mph NW | 1% |
| Sunday | 94°F | Sunny | 10 mph WSW | 6% |
| Sunday Night | 61°F | Mostly Cloudy | 5 to 10 mph WSW | 4% |
| Monday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 10 to 15 mph N | 22% |
| Monday Night | 60°F | Mostly Cloudy | 10 to 15 mph WNW | 13% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Cheyenne, WY
Last spring frost
May 21
First fall frost
Sep 24
Growing season
124 days
Hardiness zone
5b
Explore more for Cheyenne, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Archer, Wy (4.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.