Reliance, WY Weather & Growing Conditions
Tonight
29°F
Mostly Cloudy
Mostly cloudy. Low around 29, with temperatures rising to around 34 overnight. East wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 29°F | Mostly Cloudy | 7 mph E | 4% |
| Wednesday | 44°F | Cloudy | 7 mph ENE | 4% |
| Wednesday Night | 25°F | Partly Cloudy | 3 mph WNW | 2% |
| Thursday | 46°F | Mostly Sunny | 1 to 5 mph WSW | 0% |
| Thursday Night | 27°F | Mostly Cloudy | 5 mph WSW | 3% |
| Friday | 46°F | Sunny | 5 to 10 mph W | 3% |
| Friday Night | 25°F | Mostly Clear | 3 to 7 mph W | 0% |
| Saturday | 48°F | Sunny | 1 to 5 mph WSW | 0% |
| Saturday Night | 28°F | Mostly Clear | 1 mph SW | 0% |
| Sunday | 54°F | Sunny | 1 to 6 mph WSW | 0% |
| Sunday Night | 31°F | Partly Cloudy | 3 mph SW | 0% |
| Monday | 54°F | Mostly Sunny | 2 mph SW | 0% |
| Monday Night | 32°F | Mostly Cloudy | 2 mph SW | 0% |
| Tuesday | 54°F | Mostly Sunny | 5 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Reliance, WY
Last spring frost
May 24
First fall frost
Sep 24
Growing season
121 days
Hardiness zone
5a
Explore more for Reliance, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Rock Springs Fire Dept, Wy (9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.