Arapahoe, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arapahoe, a community in Fremont County, Wyoming.
Today
82°F
Areas Of Smoke
Areas of smoke. Sunny, with a high near 82. East northeast wind 6 to 9 mph.
7-day forecast for Arapahoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 82°F | Areas Of Smoke | 6 to 9 mph ENE | 0% |
| Tonight | 51°F | Areas Of Smoke | 2 to 14 mph NNW | 2% |
| Wednesday | 89°F | Sunny | 2 to 6 mph ENE | 0% |
| Wednesday Night | 54°F | Mostly Clear | 3 to 9 mph WNW | 0% |
| Thursday | 95°F | Sunny | 2 to 6 mph NNW | 0% |
| Thursday Night | 58°F | Mostly Clear | 3 to 10 mph WNW | 0% |
| Friday | 98°F | Sunny | 2 to 10 mph NW | 0% |
| Friday Night | 59°F | Mostly Clear | 13 mph W | 0% |
| Saturday | 98°F | Sunny | 8 mph NW | 0% |
| Saturday Night | 60°F | Partly Cloudy | 7 to 13 mph W | 0% |
| Sunday | 97°F | Mostly Sunny | 5 to 8 mph NNW | 5% |
| Sunday Night | 60°F | Partly Cloudy | 7 to 13 mph W | 2% |
| Monday | 96°F | Sunny | 7 mph E | 4% |
| Monday Night | 60°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 8 to 13 mph NW | 10% |
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 Aug 4, 2026.