Superior, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Superior, a town in Sweetwater County, Wyoming.
Today
42°F
Sunny
Sunny. High near 42, with temperatures falling to around 39 in the afternoon. South wind around 5 mph.
7-day forecast for Superior
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 42°F | Sunny | 5 mph S | 0% |
| Tonight | 27°F | Mostly Cloudy | 9 mph E | 8% |
| Wednesday | 42°F | Cloudy | 10 mph NE | 8% |
| Wednesday Night | 26°F | Partly Cloudy | 2 to 9 mph NNW | 0% |
| Thursday | 44°F | Mostly Sunny | 5 mph WSW | 0% |
| Thursday Night | 28°F | Partly Cloudy | 3 to 7 mph WSW | 0% |
| Friday | 43°F | Mostly Sunny | 7 to 13 mph W | 0% |
| Friday Night | 27°F | Partly Cloudy | 9 mph WSW | 0% |
| Saturday | 47°F | Sunny | 3 to 8 mph WSW | 0% |
| Saturday Night | 29°F | Mostly Clear | 3 mph WSW | 0% |
| Sunday | 53°F | Sunny | 3 to 8 mph WSW | 0% |
| Sunday Night | 32°F | Partly Cloudy | 5 mph WSW | 0% |
| Monday | 53°F | Mostly Sunny | 5 mph WSW | 0% |
| Monday Night | 33°F | Partly Cloudy | 3 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Superior (41.760, -108.964). Updated through the day.
Growing snapshot for Superior
Last spring frost
May 22
First fall frost
Sep 28
Growing season
126 days
Hardiness zone
5a
More local growing data for Superior: nearby ZIP 82945 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
Reliance
Rock Springs
Table Rock
Wamsutter
Climate data from the nearest NOAA station, Rock Springs Ap, Wy (10.5 mi from Superior). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.