Arapahoe, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arapahoe, a community in Fremont County, Wyoming.
Overnight
50°F
Patchy Fog
Patchy fog. Partly cloudy, with a low around 50. West wind around 3 mph.
7-day forecast for Arapahoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 50°F | Patchy Fog | 3 mph W | 8% |
| Saturday | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 10 mph NNW | 32% |
| Saturday Night | 42°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 3 to 12 mph NNW | 83% |
| Sunday | 64°F | Slight Chance Rain Showers then Partly Sunny | 2 to 6 mph N | 24% |
| Sunday Night | 41°F | Partly Cloudy | 1 to 6 mph NNE | 9% |
| Monday | 70°F | Sunny | 1 to 6 mph NNE | 0% |
| Monday Night | 42°F | Mostly Clear | 6 mph NNW | 0% |
| Tuesday | 74°F | Mostly Sunny | 5 mph NE | 1% |
| Tuesday Night | 45°F | Chance Showers And Thunderstorms | 5 mph WNW | 35% |
| Wednesday | 77°F | Mostly Sunny | 5 mph SSW | 8% |
| Wednesday Night | 44°F | Mostly Clear | 5 mph SW | 4% |
| Thursday | 80°F | Sunny | 3 mph SE | 1% |
| Thursday Night | 45°F | Mostly Clear | 6 mph S | 1% |
| Friday | 81°F | Mostly Sunny | 3 mph SW | 3% |
Forecast source: National Weather Service (api.weather.gov) for Arapahoe (42.993, -108.453). Updated through the day.
Growing snapshot for Arapahoe
Last spring frost
May 18
First fall frost
Sep 27
Growing season
131 days
Hardiness zone
5a
More local growing data for Arapahoe: nearby ZIP 82515 weather · frost dates · planting calendar · Wyoming frost dates
Nearby towns & communities
Atlantic City
Boulder Flats
Crowheart
Dubois
Ethete
Fort Washakie
Hudson
Jeffrey City
Johnstown
Lander
Pavillion
Riverton
Shoshoni
Climate data from the nearest NOAA station, Lander Hunt Fld Ap, Wy (9.8 mi from Arapahoe). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.