Frederick, CO Weather & Growing Conditions
Tonight
54°F
Partly Cloudy
Partly cloudy, with a low around 54. West southwest wind around 5 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Partly Cloudy | 5 mph WSW | 9% |
| Saturday | 75°F | Partly Sunny then Chance Showers And Thunderstorms | 2 to 7 mph ESE | 72% |
| Saturday Night | 51°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 2 to 6 mph WNW | 57% |
| Sunday | 71°F | Showers And Thunderstorms Likely | 2 to 6 mph ENE | 55% |
| Sunday Night | 48°F | Chance Showers And Thunderstorms then Partly Cloudy | 1 to 6 mph ESE | 32% |
| Monday | 72°F | Mostly Sunny | 1 to 7 mph ENE | 2% |
| Monday Night | 50°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 to 7 mph NE | 18% |
| Tuesday | 76°F | Mostly Sunny | 2 to 6 mph NNE | 9% |
| Tuesday Night | 52°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 6 mph SSW | 24% |
| Wednesday | 77°F | Partly Sunny | 5 mph NE | 8% |
| Wednesday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 5 mph SSW | 17% |
| Thursday | 77°F | Mostly Sunny | 2 to 6 mph NNE | 9% |
| Thursday Night | 53°F | Slight Chance Rain Showers then Mostly Cloudy | 2 to 6 mph S | 24% |
| Friday | 79°F | Mostly Sunny | 2 to 7 mph SE | 12% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Frederick, CO
Last spring frost
May 7
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
5b
Explore more for Frederick, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Longmont 2 Ese, Co (9.4 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.