Tall Timber, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tall Timber, a community in Boulder County, Colorado.
This Afternoon
76°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely. Mostly cloudy. High near 76, with temperatures falling to around 64 in the afternoon. Southwest wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for Tall Timber
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 76°F | Showers And Thunderstorms Likely | 5 mph SW | 57% |
| Tonight | 53°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 mph W | 30% |
| Saturday | 71°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 1 to 6 mph S | 70% |
| Saturday Night | 50°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 2 mph WNW | 43% |
| Sunday | 66°F | Chance Showers And Thunderstorms | 3 mph NNE | 38% |
| Sunday Night | 48°F | Chance Rain Showers then Partly Cloudy | 2 mph NNW | 30% |
| Monday | 68°F | Sunny | 0 to 6 mph ENE | 5% |
| Monday Night | 51°F | Mostly Clear | 1 mph NNW | 7% |
| Tuesday | 71°F | Mostly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph NE | 36% |
| Tuesday Night | 52°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 2 mph WSW | 22% |
| Wednesday | 72°F | Partly Sunny then Chance Showers And Thunderstorms | 0 to 3 mph ENE | 37% |
| Wednesday Night | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 2 mph SSW | 21% |
| Thursday | 71°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 1 to 5 mph N | 23% |
| Thursday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 1 mph SSW | 27% |
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 Sep 19, 2026.