Superior, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Superior, a town in Boulder County, Colorado.
Tonight
33°F
Mostly Clear
Mostly clear, with a low around 33. South southwest wind around 3 mph.
7-day forecast for Superior
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 33°F | Mostly Clear | 3 mph SSW | 0% |
| Wednesday | 55°F | Mostly Sunny | 2 to 6 mph NNE | 10% |
| Wednesday Night | 34°F | Mostly Cloudy | 5 mph NW | 10% |
| Thursday | 57°F | Sunny | 2 to 7 mph SSE | 0% |
| Thursday Night | 35°F | Partly Cloudy | 3 mph SW | 1% |
| Friday | 57°F | Mostly Sunny | 2 to 6 mph NE | 11% |
| Friday Night | 34°F | Partly Cloudy | 5 mph SSW | 11% |
| Saturday | 59°F | Sunny | 2 to 8 mph SSW | 1% |
| Saturday Night | 34°F | Mostly Clear | 5 mph WSW | 0% |
| Sunday | 67°F | Sunny | 2 to 7 mph SSW | 0% |
| Sunday Night | 40°F | Mostly Clear | 5 to 9 mph WSW | 0% |
| Monday | 66°F | Mostly Sunny | 2 to 8 mph ESE | 0% |
| Monday Night | 40°F | Partly Cloudy | 5 mph WNW | 0% |
| Tuesday | 64°F | Mostly Sunny | 5 mph NE | 5% |
Forecast source: National Weather Service (api.weather.gov) for Superior (39.931, -105.159). Updated through the day.
Growing snapshot for Superior
Last spring frost
May 6
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
6a
More local growing data for Superior: nearby ZIP 80027 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Allenspark
Altona
Bark Ranch
Bonanza Mountain Estates
Boulder
Coal Creek
Crisman
Eldorado Springs
Glendale
Gold Hill
Gunbarrel
Hidden Lake
Jamestown
Lafayette
Lazy Acres
Leyner
Longmont
Louisville
Lyons
Mountain Meadows
Nederland
Niwot
Paragon Estates
Pine Brook Hill
Seven Hills
St. Ann Highlands
Sugarloaf
Sunshine
Tall Timber
Valmont
Climate data from the nearest NOAA station, Boulder, Co (6.4 mi from Superior). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.