Arapahoe, WY Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arapahoe, a community in Fremont County, Wyoming.
This Afternoon
50°F
Sunny
Sunny. High near 50, with temperatures falling to around 47 in the afternoon. East wind around 5 mph.
7-day forecast for Arapahoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 50°F | Sunny | 5 mph E | 0% |
| Tonight | 28°F | Partly Cloudy then Patchy Fog | 5 mph N | 0% |
| Wednesday | 51°F | Areas Of Fog then Mostly Cloudy | 3 mph N | 0% |
| Wednesday Night | 26°F | Partly Cloudy | 1 to 5 mph WSW | 0% |
| Thursday | 54°F | Sunny | 2 mph S | 0% |
| Thursday Night | 30°F | Partly Cloudy | 2 to 7 mph WSW | 4% |
| Friday | 53°F | Sunny | 2 to 6 mph WSW | 4% |
| Friday Night | 29°F | Mostly Clear | 5 mph SW | 1% |
| Saturday | 55°F | Sunny | 3 mph S | 0% |
| Saturday Night | 29°F | Mostly Clear | 3 mph SW | 0% |
| Sunday | 60°F | Sunny | 5 mph SW | 0% |
| Sunday Night | 33°F | Partly Cloudy | 5 mph SW | 0% |
| Monday | 59°F | Mostly Sunny | 3 mph NW | 0% |
| Monday Night | 33°F | Partly Cloudy | 3 mph W | 0% |
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
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Hudson
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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 Nov 3, 2026.