Superior, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Superior, a town in Boulder County, Colorado.
Today
77°F
Patchy Smoke
Patchy smoke before noon, then patchy smoke and a slight chance of showers and thunderstorms. Mostly sunny. High near 77, with temperatures falling to around 75 in the afternoon. East northeast wind around 8 mph. Chance of precipitation is 20%.
7-day forecast for Superior
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Patchy Smoke | 8 mph ENE | 15% |
| Tonight | 55°F | Patchy Smoke | 3 to 8 mph NNE | 11% |
| Wednesday | 85°F | Patchy Smoke | 3 to 8 mph NE | 0% |
| Wednesday Night | 58°F | Mostly Clear | 3 to 8 mph NNE | 2% |
| Thursday | 94°F | Sunny | 3 to 8 mph NNW | 1% |
| Thursday Night | 61°F | Mostly Clear | 3 to 7 mph WSW | 1% |
| Friday | 96°F | Sunny | 3 to 8 mph S | 0% |
| Friday Night | 65°F | Mostly Clear | 6 to 9 mph SSW | 0% |
| Saturday | 98°F | Sunny | 3 to 9 mph NNW | 2% |
| Saturday Night | 65°F | Partly Cloudy | 8 mph WNW | 0% |
| Sunday | 97°F | Sunny | 5 to 8 mph NNE | 9% |
| Sunday Night | 67°F | Partly Cloudy | 8 mph WNW | 4% |
| Monday | 96°F | Mostly Sunny then Chance Showers And Thunderstorms | 7 to 10 mph NNW | 25% |
| Monday Night | 65°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 10 mph WNW | 16% |
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
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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 Aug 4, 2026.