Windsor, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Windsor, a town in Weld County, Colorado.
This Afternoon
59°F
Sunny
Sunny. High near 59, with temperatures falling to around 54 in the afternoon. North northeast wind 6 to 9 mph, with gusts as high as 17 mph.
7-day forecast for Windsor
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 59°F | Sunny | 6 to 9 mph NNE | 0% |
| Tonight | 32°F | Mostly Clear | 5 mph SW | 0% |
| Wednesday | 57°F | Mostly Sunny | 5 mph NNE | 2% |
| Wednesday Night | 34°F | Mostly Cloudy | 6 mph NNW | 1% |
| Thursday | 60°F | Sunny | 5 mph SSW | 0% |
| Thursday Night | 34°F | Partly Cloudy | 3 mph W | 1% |
| Friday | 60°F | Mostly Sunny | 3 to 7 mph ENE | 6% |
| Friday Night | 33°F | Mostly Clear | 5 mph WNW | 6% |
| Saturday | 61°F | Sunny | 6 mph SSW | 1% |
| Saturday Night | 32°F | Clear | 3 mph W | 0% |
| Sunday | 65°F | Sunny | 1 to 6 mph SW | 0% |
| Sunday Night | 37°F | Mostly Clear | 1 to 6 mph W | 0% |
| Monday | 66°F | Sunny | 3 to 7 mph S | 0% |
| Monday Night | 37°F | Partly Cloudy | 5 mph N | 0% |
Forecast source: National Weather Service (api.weather.gov) for Windsor (40.478, -104.915). Updated through the day.
Growing snapshot for Windsor
Last spring frost
May 3
First fall frost
Oct 6
Growing season
154 days
Hardiness zone
5b
More local growing data for Windsor: nearby ZIP 80550 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Aristocrat Ranchettes
Ault
Berthoud
Briggsdale
Dacono
Eaton
Erie
Evans
Firestone
Fort Lupton
Frederick
Garden City
Gilcrest
Greeley
Grover
Hudson
Johnstown
Keenesburg
Kersey
La Salle
Mead
Milliken
Nunn
Orchard
Pierce
Platteville
Raymer (New Raymer)
Severance
Climate data from the nearest NOAA station, Ft Collins 4 E, Co (8.8 mi from Windsor). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.