Harman US

Hayden, CO Weather & Growing Conditions

Overnight
43°F
Rain Showers Likely
Rain showers likely. Mostly cloudy, with a low around 43. Southeast wind around 5 mph. Chance of precipitation is 70%.

7-day forecast

WhenTempForecastWindPrecip
Overnight 43°F Rain Showers Likely 5 mph SE 66%
Saturday 65°F Chance Showers And Thunderstorms 5 to 10 mph S 95%
Saturday Night 39°F Showers And Thunderstorms then Slight Chance Showers And Thunderstorms 0 to 5 mph E 78%
Sunday 60°F Slight Chance Rain Showers then Mostly Sunny 0 to 10 mph WSW 15%
Sunday Night 35°F Mostly Clear 5 to 10 mph NE 0%
Monday 67°F Sunny 0 to 10 mph SW 0%
Monday Night 39°F Mostly Clear 5 to 10 mph NE 0%
Tuesday 70°F Mostly Sunny then Slight Chance Showers And Thunderstorms 5 to 10 mph SW 14%
Tuesday Night 42°F Chance Showers And Thunderstorms 0 to 5 mph SSE 38%
Wednesday 67°F Chance Rain Showers then Slight Chance Showers And Thunderstorms 0 to 10 mph S 29%
Wednesday Night 41°F Partly Cloudy 5 mph SSE 6%
Thursday 70°F Mostly Sunny 0 to 5 mph SW 4%
Thursday Night 43°F Partly Cloudy 5 mph SSE 8%
Friday 70°F Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms 5 mph SSW 19%

Forecast source: National Weather Service (api.weather.gov). Updated through the day.

Growing snapshot for Hayden, CO

Last spring frost
Jun 1
First fall frost
Sep 20
Growing season
109 days
Hardiness zone
5a

Explore more for Hayden, CO: full frost dates · planting calendar · Colorado frost dates

Climate data from the nearest NOAA station, Hayden, Co (5 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.