Frederick, CO Weather & Growing Conditions
Today
78°F
Patchy Smoke
Patchy smoke. Mostly sunny. High near 78, with temperatures falling to around 76 in the afternoon. East wind 7 to 12 mph, with gusts as high as 18 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 78°F | Patchy Smoke | 7 to 12 mph E | 9% |
| Tonight | 55°F | Patchy Smoke | 6 to 12 mph NE | 9% |
| Wednesday | 86°F | Patchy Smoke then Sunny | 6 to 10 mph NE | 0% |
| Wednesday Night | 58°F | Patchy Smoke then Mostly Clear | 5 to 10 mph SE | 1% |
| Thursday | 95°F | Sunny | 3 to 8 mph N | 0% |
| Thursday Night | 61°F | Mostly Clear | 7 mph SW | 1% |
| Friday | 98°F | Sunny | 2 to 7 mph SSW | 0% |
| Friday Night | 64°F | Mostly Clear | 9 mph S | 0% |
| Saturday | 100°F | Sunny | 3 to 8 mph N | 1% |
| Saturday Night | 64°F | Partly Cloudy | 5 to 9 mph W | 1% |
| Sunday | 99°F | Sunny | 3 to 8 mph N | 6% |
| Sunday Night | 65°F | Partly Cloudy | 5 to 9 mph W | 5% |
| Monday | 98°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph N | 16% |
| Monday Night | 64°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 12 mph WNW | 15% |
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 Aug 4, 2026.