Cheyenne, WY Weather & Growing Conditions
Overnight
52°F
Slight Chance Rain Showers
A slight chance of rain showers. Mostly cloudy. Low around 52, with temperatures rising to around 54 overnight. West northwest wind around 5 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 52°F | Slight Chance Rain Showers | 5 mph WNW | 17% |
| Saturday | 72°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph W | 65% |
| Saturday Night | 44°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 37% |
| Sunday | 64°F | Rain Showers Likely | 10 to 15 mph NNW | 64% |
| Sunday Night | 42°F | Partly Cloudy | 5 to 15 mph NW | 9% |
| Monday | 66°F | Sunny | 5 to 10 mph SSW | 3% |
| Monday Night | 45°F | Partly Cloudy | 10 mph SSE | 7% |
| Tuesday | 70°F | Mostly Sunny | 10 to 15 mph S | 3% |
| Tuesday Night | 47°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 15 mph SSE | 16% |
| Wednesday | 73°F | Partly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Wednesday Night | 48°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph SW | 15% |
| Thursday | 74°F | Sunny | 5 to 10 mph N | 3% |
| Thursday Night | 49°F | Partly Cloudy | 5 to 10 mph S | 7% |
| Friday | 75°F | Mostly Sunny | 5 to 15 mph SSW | 9% |
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 Sep 19, 2026.