Superior, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Superior, a town in Sweetwater County, Wyoming.
Today
63°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 1pm and 3pm, then showers and thunderstorms likely between 3pm and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of showers and thunderstorms. Mostly sunny. High near 63, with temperatures falling to around 59 in the afternoon. West southwest wind 3 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Superior
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 63°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 12 mph WSW | 56% |
| Tonight | 35°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 3 to 9 mph WNW | 23% |
| Sunday | 62°F | Mostly Sunny | 3 to 10 mph W | 0% |
| Sunday Night | 36°F | Mostly Clear | 2 to 7 mph NNE | 0% |
| Monday | 68°F | Sunny | 5 mph W | 0% |
| Monday Night | 40°F | Partly Cloudy | 3 mph S | 0% |
| Tuesday | 70°F | Mostly Sunny | 2 to 7 mph SSE | 8% |
| Tuesday Night | 41°F | Chance Showers And Thunderstorms | 6 mph SW | 30% |
| Wednesday | 70°F | Mostly Sunny | 5 to 10 mph SW | 6% |
| Wednesday Night | 41°F | Mostly Clear | 6 mph SW | 2% |
| Thursday | 72°F | Sunny | 2 to 6 mph SW | 1% |
| Thursday Night | 43°F | Partly Cloudy | 3 mph S | 3% |
| Friday | 73°F | Mostly Sunny | 3 to 8 mph SW | 6% |
| Friday Night | 44°F | Partly Cloudy | 7 mph SSW | 11% |
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 Sep 19, 2026.