James Town, WY Weather & Growing Conditions
Overnight
46°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms before 1am, then patchy fog and a slight chance of showers and thunderstorms. Mostly cloudy. Low around 46, with temperatures rising to around 50 overnight. South southeast wind around 5 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 46°F | Slight Chance Showers And Thunderstorms | 5 mph SSE | 16% |
| Saturday | 66°F | Patchy Fog then Chance Showers And Thunderstorms | 3 to 10 mph WSW | 44% |
| Saturday Night | 32°F | Partly Cloudy then Patchy Fog | 2 to 10 mph W | 11% |
| Sunday | 67°F | Sunny | 2 to 7 mph W | 0% |
| Sunday Night | 33°F | Mostly Clear | 1 to 7 mph N | 0% |
| Monday | 71°F | Sunny | 2 mph WNW | 0% |
| Monday Night | 38°F | Partly Cloudy | 2 mph SSE | 2% |
| Tuesday | 73°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph SW | 11% |
| Tuesday Night | 38°F | Chance Showers And Thunderstorms | 3 mph SW | 34% |
| Wednesday | 74°F | Mostly Sunny | 5 mph SW | 7% |
| Wednesday Night | 38°F | Mostly Clear | 3 mph SW | 2% |
| Thursday | 77°F | Sunny | 1 mph SW | 1% |
| Thursday Night | 40°F | Partly Cloudy | 2 mph S | 3% |
| Friday | 77°F | Mostly Sunny | 1 to 5 mph S | 4% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for James Town, WY
Last spring frost
May 24
First fall frost
Sep 22
Growing season
120 days
Hardiness zone
5a
Explore more for James Town, WY: full frost dates · planting calendar · Wyoming frost dates
Climate data from the nearest NOAA station, Green Rvr, Wy (14.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.