Arapahoe, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arapahoe, a community in Cheyenne County, Colorado.
Today
80°F
Partly Sunny
Partly sunny. High near 80, with temperatures falling to around 76 in the afternoon. Northeast wind 10 to 25 mph, with gusts as high as 40 mph.
7-day forecast for Arapahoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Partly Sunny | 10 to 25 mph NE | 5% |
| Tonight | 55°F | Mostly Cloudy then Slight Chance Rain Showers | 5 to 10 mph E | 15% |
| Wednesday | 83°F | Mostly Sunny | 5 to 10 mph E | 3% |
| Wednesday Night | 56°F | Partly Cloudy then Slight Chance Rain Showers | 5 to 10 mph SE | 24% |
| Thursday | 92°F | Sunny | 5 to 10 mph S | 3% |
| Thursday Night | 60°F | Mostly Clear | 5 to 10 mph SE | 1% |
| Friday | 98°F | Sunny | 0 to 10 mph S | 2% |
| Friday Night | 62°F | Mostly Clear | 5 to 10 mph S | 2% |
| Saturday | 101°F | Sunny | 5 to 10 mph S | 0% |
| Saturday Night | 65°F | Mostly Clear | 10 to 15 mph S | 1% |
| Sunday | 102°F | Sunny | 10 to 15 mph S | 0% |
| Sunday Night | 66°F | Mostly Clear | 10 to 15 mph S | 2% |
| Monday | 102°F | Sunny | 10 to 15 mph S | 2% |
| Monday Night | 66°F | Mostly Clear | 10 to 15 mph S | 9% |
Forecast source: National Weather Service (api.weather.gov) for Arapahoe (38.853, -102.179). Updated through the day.
Growing snapshot for Arapahoe
Last spring frost
May 5
First fall frost
Oct 9
Growing season
156 days
Hardiness zone
6a
More local growing data for Arapahoe: nearby ZIP 80802 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Arapahoe 12S, Co (9.9 mi from Arapahoe). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.