Nunn, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Nunn, a town in Weld County, Colorado.
Overnight
31°F
Partly Cloudy
Partly cloudy, with a low around 31. Northwest wind around 6 mph.
7-day forecast for Nunn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 31°F | Partly Cloudy | 6 mph NW | 0% |
| Wednesday | 56°F | Partly Sunny | 3 to 7 mph NNE | 2% |
| Wednesday Night | 32°F | Mostly Cloudy | 9 mph N | 2% |
| Thursday | 58°F | Sunny | 5 to 8 mph WSW | 0% |
| Thursday Night | 34°F | Partly Cloudy | 2 to 6 mph W | 0% |
| Friday | 58°F | Mostly Sunny | 6 to 10 mph NNE | 12% |
| Friday Night | 32°F | Mostly Clear | 7 mph N | 12% |
| Saturday | 60°F | Sunny | 5 to 8 mph NNW | 0% |
| Saturday Night | 32°F | Mostly Clear | 5 mph NW | 0% |
| Sunday | 63°F | Sunny | 2 to 8 mph SW | 0% |
| Sunday Night | 37°F | Mostly Clear | 2 to 8 mph W | 0% |
| Monday | 65°F | Sunny | 3 to 8 mph WSW | 0% |
| Monday Night | 36°F | Partly Cloudy | 5 mph NNE | 0% |
| Tuesday | 62°F | Mostly Sunny | 7 mph W | 0% |
Forecast source: National Weather Service (api.weather.gov) for Nunn (40.714, -104.789). Updated through the day.
Growing snapshot for Nunn
Last spring frost
May 13
First fall frost
Sep 27
Growing season
136 days
Hardiness zone
5b
More local growing data for Nunn: nearby ZIP 80650 weather · frost dates · planting calendar · Colorado frost dates
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Severance
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Climate data from the nearest NOAA station, Nunn 7 Nne, Co (11 mi from Nunn). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.