Arapahoe, CO Weather & Growing Conditions
Tonight
60°F
Slight Chance Showers And Thunderstorms then Mostly Cloudy
A slight chance of showers and thunderstorms between 8pm and 10pm. Mostly cloudy, with a low around 60. North wind 5 to 10 mph. Chance of precipitation is 20%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 60°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 | 68% |
| Sunday | 71°F | Chance Rain Showers | 5 mph NE | 47% |
| Sunday Night | 53°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 | 28% |
| Tuesday | 69°F | Chance Rain Showers then Partly Sunny | 5 to 20 mph SE | 26% |
| Tuesday Night | 56°F | Chance Showers And Thunderstorms | 10 to 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 | 30% |
| Thursday | 75°F | Chance Rain Showers | 5 to 10 mph S | 26% |
| Thursday Night | 57°F | Chance Rain Showers | 5 mph S | 26% |
| Friday | 75°F | Slight Chance Rain Showers | 5 to 10 mph S | 17% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Arapahoe, CO
Last spring frost
May 5
First fall frost
Oct 9
Growing season
156 days
Hardiness zone
6a
Explore more for Arapahoe, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Arapahoe 12S, Co (9.9 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.