James Town, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for James Town, a community in Sweetwater County, Wyoming.
Today
66°F
Patchy Fog then Chance Showers And Thunderstorms
Patchy fog before 9am, then a chance of showers and thunderstorms between noon and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a slight chance of showers and thunderstorms. Mostly sunny. High near 66, with temperatures falling to around 63 in the afternoon. West southwest wind 2 to 9 mph. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for James Town
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 66°F | Patchy Fog then Chance Showers And Thunderstorms | 2 to 9 mph WSW | 53% |
| Tonight | 34°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 9 mph WSW | 19% |
| Sunday | 67°F | Sunny | 2 to 8 mph WSW | 0% |
| Sunday Night | 35°F | Mostly Clear | 1 to 7 mph SSE | 0% |
| Monday | 72°F | Sunny | 3 mph SW | 0% |
| Monday Night | 40°F | Partly Cloudy | 3 mph SSE | 2% |
| Tuesday | 74°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph SSW | 12% |
| Tuesday Night | 40°F | Chance Showers And Thunderstorms | 5 mph SW | 34% |
| Wednesday | 75°F | Mostly Sunny | 2 to 6 mph SW | 9% |
| Wednesday Night | 40°F | Mostly Clear | 3 mph SSW | 3% |
| Thursday | 77°F | Sunny | 2 mph SW | 1% |
| Thursday Night | 42°F | Partly Cloudy | 2 mph S | 4% |
| Friday | 77°F | Mostly Sunny | 1 to 5 mph S | 5% |
| Friday Night | 43°F | Partly Cloudy | 6 mph SSW | 12% |
Forecast source: National Weather Service (api.weather.gov) for James Town (41.564, -109.536). Updated through the day.
Growing snapshot for James Town
Last spring frost
May 24
First fall frost
Sep 22
Growing season
120 days
Hardiness zone
5a
More local growing data for James Town: nearby ZIP 82935 weather · frost dates · planting calendar · Wyoming frost dates
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Rock Springs
Superior
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Wamsutter
Climate data from the nearest NOAA station, Green Rvr, Wy (14.8 mi from James Town). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.