Cheyenne, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Cheyenne, a city in Laramie County, Wyoming.
Tonight
51°F
Slight Chance Showers And Thunderstorms then Mostly Cloudy
A slight chance of showers and thunderstorms before 9pm. Mostly cloudy, with a low around 51. West southwest wind around 5 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Cheyenne
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 51°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 mph WSW | 17% |
| Saturday | 71°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 to 10 mph WSW | 42% |
| Saturday Night | 45°F | Partly Cloudy | 5 mph W | 13% |
| Sunday | 66°F | Partly Sunny then Chance Showers And Thunderstorms | 5 to 10 mph NW | 37% |
| Sunday Night | 42°F | Partly Cloudy | 5 to 10 mph WNW | 9% |
| Monday | 67°F | Sunny | 5 to 10 mph SSW | 2% |
| Monday Night | 46°F | Partly Cloudy | 5 to 10 mph SSE | 4% |
| Tuesday | 72°F | Mostly Sunny | 5 to 10 mph S | 11% |
| Tuesday Night | 49°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph S | 34% |
| Wednesday | 74°F | Partly Sunny then Chance Showers And Thunderstorms | 5 mph S | 26% |
| Wednesday Night | 49°F | Mostly Cloudy | 5 mph WSW | 12% |
| Thursday | 74°F | Mostly Sunny | 5 to 10 mph ENE | 11% |
| Thursday Night | 50°F | Slight Chance Rain Showers then Mostly Cloudy | 0 to 10 mph S | 19% |
| Friday | 75°F | Mostly Sunny | 0 to 10 mph S | 12% |
Forecast source: National Weather Service (api.weather.gov) for Cheyenne (41.127, -104.790). Updated through the day.
Growing snapshot for Cheyenne
Last spring frost
May 14
First fall frost
Oct 1
Growing season
139 days
Hardiness zone
5b
More local growing data for Cheyenne: nearby ZIP 82005 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Cheyenne Wfo, Wy (3.2 mi from Cheyenne). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.