Arapahoe, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Arapahoe, a community in Cheyenne County, Colorado.
This Afternoon
91°F
Mostly Sunny
Mostly sunny. High near 91, with temperatures falling to around 89 in the afternoon. Southwest wind 5 to 10 mph.
7-day forecast for Arapahoe
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 91°F | Mostly Sunny | 5 to 10 mph SW | 6% |
| Tonight | 59°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph N | 16% |
| Saturday | 81°F | Mostly Sunny | 5 to 10 mph NE | 6% |
| Saturday Night | 57°F | Showers And Thunderstorms Likely | 5 to 10 mph NE | 69% |
| Sunday | 71°F | Chance Rain Showers | 5 mph NE | 48% |
| Sunday Night | 52°F | Showers And Thunderstorms Likely | 0 to 5 mph N | 68% |
| Monday | 70°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 0 to 5 mph NW | 18% |
| Monday Night | 52°F | Partly Cloudy then Chance Rain Showers | 5 mph SE | 30% |
| Tuesday | 69°F | Chance Rain Showers then Partly Sunny | 10 to 20 mph SE | 25% |
| Tuesday Night | 56°F | Chance Showers And Thunderstorms | 15 mph SE | 44% |
| Wednesday | 73°F | Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms | 15 to 20 mph S | 22% |
| Wednesday Night | 57°F | Chance Showers And Thunderstorms | 5 to 15 mph S | 29% |
| Thursday | 75°F | Chance Rain Showers | 5 to 10 mph S | 26% |
| Thursday Night | 57°F | Chance Rain Showers | 5 mph SE | 26% |
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 Sep 18, 2026.