Tall Timber, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tall Timber, a community in Boulder County, Colorado.
Overnight
54°F
Patchy Smoke
Patchy smoke and a slight chance of rain showers. Mostly cloudy. Low around 54, with temperatures rising to around 56 overnight. East northeast wind around 5 mph. Chance of precipitation is 20%.
7-day forecast for Tall Timber
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Patchy Smoke | 5 mph ENE | 17% |
| Tuesday | 73°F | Patchy Smoke | 3 to 7 mph E | 20% |
| Tuesday Night | 54°F | Patchy Smoke | 1 to 6 mph E | 13% |
| Wednesday | 81°F | Patchy Smoke then Sunny | 2 to 7 mph NE | 2% |
| Wednesday Night | 56°F | Mostly Clear | 5 mph SW | 1% |
| Thursday | 89°F | Sunny | 1 to 5 mph NNE | 2% |
| Thursday Night | 58°F | Clear | 2 to 6 mph NW | 1% |
| Friday | 91°F | Sunny | 1 to 6 mph NNE | 0% |
| Friday Night | 63°F | Mostly Clear | 2 to 9 mph SSW | 0% |
| Saturday | 93°F | Sunny | 2 to 8 mph NNW | 5% |
| Saturday Night | 64°F | Mostly Clear | 6 mph WNW | 1% |
| Sunday | 92°F | Sunny | 5 mph N | 9% |
| Sunday Night | 66°F | Partly Cloudy | 6 mph WNW | 6% |
| Monday | 90°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 6 mph N | 40% |
Forecast source: National Weather Service (api.weather.gov) for Tall Timber (40.015, -105.350). Updated through the day.
Growing snapshot for Tall Timber
Last spring frost
May 6
First fall frost
Oct 5
Growing season
151 days
Hardiness zone
6a
More local growing data for Tall Timber: nearby ZIP 80302 weather · frost dates · planting calendar · Colorado frost dates
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Climate data from the nearest NOAA station, Boulder, Co (4.9 mi from Tall Timber). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.