Green River, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Green River, a city in Sweetwater County, Wyoming.
This Afternoon
74°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Partly sunny. High near 74, with temperatures falling to around 70 in the afternoon. East southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Green River
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 74°F | Showers And Thunderstorms Likely | 7 mph ESE | 64% |
| Tonight | 45°F | Chance Showers And Thunderstorms | 2 to 7 mph ESE | 66% |
| Saturday | 66°F | Patchy Fog then Showers And Thunderstorms Likely | 2 to 10 mph W | 55% |
| Saturday Night | 40°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 2 to 9 mph SW | 12% |
| Sunday | 67°F | Sunny | 2 to 7 mph WSW | 0% |
| Sunday Night | 41°F | Mostly Clear | 1 to 6 mph SSE | 0% |
| Monday | 73°F | Sunny | 2 mph SW | 0% |
| Monday Night | 45°F | Partly Cloudy | 3 mph SW | 2% |
| Tuesday | 74°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 mph S | 11% |
| Tuesday Night | 45°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 mph SW | 24% |
| Wednesday | 74°F | Mostly Sunny | 5 mph SW | 7% |
| Wednesday Night | 45°F | Mostly Clear | 3 mph SW | 6% |
| Thursday | 77°F | Mostly Sunny | 3 mph SSE | 2% |
| Thursday Night | 47°F | Partly Cloudy | 3 mph SE | 7% |
Forecast source: National Weather Service (api.weather.gov) for Green River (41.513, -109.471). Updated through the day.
Growing snapshot for Green River
Last spring frost
May 24
First fall frost
Sep 22
Growing season
120 days
Hardiness zone
5a
More local growing data for Green River: nearby ZIP 82935 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
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Bairoil
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McKinnon
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Point of Rocks
Purple Sage
Reliance
Rock Springs
Superior
Table Rock
Wamsutter
Climate data from the nearest NOAA station, Green Rvr, Wy (14.8 mi from Green River). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.