Reliance, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Reliance, a community in Sweetwater County, Wyoming.
Today
84°F
Patchy Smoke
Patchy smoke. Sunny, with a high near 84. North wind 3 to 12 mph.
7-day forecast for Reliance
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Patchy Smoke | 3 to 12 mph N | 0% |
| Tonight | 47°F | Areas Of Smoke | 2 to 16 mph WNW | 0% |
| Wednesday | 83°F | Sunny | 2 to 16 mph SSW | 0% |
| Wednesday Night | 49°F | Mostly Clear | 2 to 17 mph W | 0% |
| Thursday | 89°F | Sunny | 0 to 16 mph W | 0% |
| Thursday Night | 53°F | Mostly Clear | 1 to 16 mph WNW | 0% |
| Friday | 93°F | Sunny | 1 to 13 mph W | 0% |
| Friday Night | 57°F | Partly Cloudy | 5 to 12 mph W | 0% |
| Saturday | 94°F | Sunny | 2 to 12 mph W | 0% |
| Saturday Night | 59°F | Partly Cloudy | 3 to 10 mph W | 0% |
| Sunday | 93°F | Sunny | 2 to 10 mph WSW | 5% |
| Sunday Night | 58°F | Mostly Cloudy | 3 to 12 mph S | 3% |
| Monday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 9 mph WSW | 15% |
| Monday Night | 57°F | Mostly Cloudy | 3 to 12 mph SSW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Reliance (41.668, -109.198). Updated through the day.
Growing snapshot for Reliance
Last spring frost
May 24
First fall frost
Sep 24
Growing season
121 days
Hardiness zone
5a
More local growing data for Reliance: nearby ZIP 82943 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Arrowhead Springs
Bairoil
Clearview Acres
Eden
Farson
Granger
Green River
James Town
Little America
McKinnon
North Rock Springs
Point of Rocks
Purple Sage
Rock Springs
Superior
Table Rock
Wamsutter
Climate data from the nearest NOAA station, Rock Springs Fire Dept, Wy (9 mi from Reliance). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.