Frederick, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Frederick, a town in Weld County, Colorado.
Tonight
34°F
Mostly Clear
Mostly clear, with a low around 34. South wind around 3 mph.
7-day forecast for Frederick
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 34°F | Mostly Clear | 3 mph S | 0% |
| Wednesday | 56°F | Mostly Sunny | 3 mph NNE | 5% |
| Wednesday Night | 35°F | Mostly Cloudy | 3 mph NW | 5% |
| Thursday | 58°F | Sunny | 5 mph SSE | 0% |
| Thursday Night | 35°F | Partly Cloudy | 2 mph SW | 1% |
| Friday | 58°F | Mostly Sunny | 1 to 6 mph NE | 5% |
| Friday Night | 34°F | Mostly Clear | 3 mph SW | 5% |
| Saturday | 60°F | Sunny | 5 mph S | 0% |
| Saturday Night | 33°F | Mostly Clear | 3 mph SW | 0% |
| Sunday | 66°F | Sunny | 3 mph S | 0% |
| Sunday Night | 38°F | Mostly Clear | 5 mph SW | 0% |
| Monday | 65°F | Sunny | 5 mph SSE | 0% |
| Monday Night | 38°F | Partly Cloudy | 3 mph W | 0% |
| Tuesday | 64°F | Mostly Sunny | 3 mph SE | 4% |
Forecast source: National Weather Service (api.weather.gov) for Frederick (40.106, -104.974). Updated through the day.
Growing snapshot for Frederick
Last spring frost
May 7
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
5b
More local growing data for Frederick: nearby ZIP 80514 weather · frost dates · planting calendar · Colorado frost dates
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Severance
Windsor
Climate data from the nearest NOAA station, Longmont 2 Ese, Co (9.4 mi from Frederick). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.