Jeffrey City, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Jeffrey City, a community in Fremont County, Wyoming.
This Afternoon
71°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms. Partly sunny. High near 71, with temperatures falling to around 68 in the afternoon. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 50%.
7-day forecast for Jeffrey City
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 71°F | Chance Showers And Thunderstorms | 10 mph SW | 52% |
| Tonight | 40°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 to 9 mph WNW | 60% |
| Sunday | 62°F | Chance Rain Showers then Slight Chance Showers And Thunderstorms | 3 to 7 mph NW | 37% |
| Sunday Night | 38°F | Mostly Cloudy | 0 to 6 mph N | 0% |
| Monday | 69°F | Mostly Sunny | 0 to 7 mph SSW | 0% |
| Monday Night | 40°F | Mostly Clear | 2 to 6 mph SSW | 0% |
| Tuesday | 74°F | Mostly Sunny | 2 to 12 mph SSW | 2% |
| Tuesday Night | 45°F | Slight Chance Showers And Thunderstorms | 8 mph SSW | 23% |
| Wednesday | 73°F | Mostly Sunny | 13 to 17 mph SW | 10% |
| Wednesday Night | 44°F | Mostly Clear | 8 mph SW | 2% |
| Thursday | 76°F | Sunny | 6 to 9 mph SSW | 1% |
| Thursday Night | 46°F | Partly Cloudy | 6 mph S | 2% |
| Friday | 77°F | Mostly Sunny | 6 to 14 mph SSW | 5% |
| Friday Night | 47°F | Partly Cloudy | 12 mph SSW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Jeffrey City (42.483, -107.829). Updated through the day.
Growing snapshot for Jeffrey City
Last spring frost
Jun 1
First fall frost
Sep 13
Growing season
104 days
Hardiness zone
4b
More local growing data for Jeffrey City: nearby ZIP 82310 weather · frost dates · planting calendar · Wyoming frost dates
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Lander
Pavillion
Riverton
Shoshoni
Climate data from the nearest NOAA station, Jeffrey City, Wy (4.2 mi from Jeffrey City). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.