Nunn, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Nunn, a town in Weld County, Colorado.
This Afternoon
56°F
Sunny
Sunny. High near 56, with temperatures falling to around 49 in the afternoon. North northeast wind around 12 mph, with gusts as high as 21 mph.
7-day forecast for Nunn
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Sunny | 12 mph NNE | 0% |
| Tonight | 30°F | Mostly Clear | 5 to 8 mph NW | 0% |
| Wednesday | 56°F | Partly Sunny | 3 to 8 mph NNW | 1% |
| Wednesday Night | 32°F | Mostly Cloudy | 9 mph N | 0% |
| Thursday | 58°F | Sunny | 5 to 8 mph WSW | 0% |
| Thursday Night | 32°F | Partly Cloudy | 2 to 7 mph WNW | 0% |
| Friday | 59°F | Mostly Sunny | 6 to 10 mph NNW | 6% |
| Friday Night | 32°F | Mostly Clear | 7 mph NW | 6% |
| Saturday | 59°F | Sunny | 5 to 9 mph W | 1% |
| Saturday Night | 31°F | Mostly Clear | 5 mph WNW | 0% |
| Sunday | 65°F | Sunny | 3 to 8 mph WSW | 0% |
| Sunday Night | 38°F | Mostly Clear | 3 to 9 mph WNW | 0% |
| Monday | 65°F | Sunny | 5 to 9 mph SSW | 0% |
| Monday Night | 37°F | Partly Cloudy | 6 mph N | 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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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.