Sundance, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sundance, a town in Crook County, Wyoming.
This Afternoon
77°F
Sunny
Sunny, with a high near 77. Northeast wind around 6 mph, with gusts as high as 16 mph.
7-day forecast for Sundance
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 77°F | Sunny | 6 mph NE | 2% |
| Tonight | 54°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 1 to 6 mph SW | 72% |
| Saturday | 63°F | Showers And Thunderstorms Likely | 1 to 6 mph NE | 73% |
| Saturday Night | 51°F | Showers And Thunderstorms Likely | 2 to 6 mph NE | 74% |
| Sunday | 57°F | Rain Showers | 2 to 6 mph E | 99% |
| Sunday Night | 49°F | Showers And Thunderstorms | 5 mph E | 77% |
| Monday | 61°F | Chance Rain Showers | 5 mph SE | 49% |
| Monday Night | 49°F | Mostly Clear | 5 to 9 mph SE | 3% |
| Tuesday | 70°F | Sunny | 6 to 10 mph S | 5% |
| Tuesday Night | 54°F | Mostly Clear | 5 to 8 mph S | 12% |
| Wednesday | 74°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 7 mph S | 19% |
| Wednesday Night | 53°F | Mostly Clear | 5 mph SE | 11% |
| Thursday | 75°F | Sunny | 6 mph SE | 6% |
| Thursday Night | 55°F | Partly Cloudy | 5 to 8 mph SE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Sundance (44.405, -104.366). Updated through the day.
Growing snapshot for Sundance
Last spring frost
May 21
First fall frost
Sep 25
Growing season
124 days
Hardiness zone
4b
More local growing data for Sundance: nearby ZIP 82729 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sundance, Wy (2.8 mi from Sundance). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.