Lone Tree, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Lone Tree, a city in Douglas County, Colorado.
Today
80°F
Patchy Smoke
Patchy smoke before noon, then patchy smoke and a slight chance of showers and thunderstorms. Mostly sunny. High near 80, with temperatures falling to around 75 in the afternoon. East northeast wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
7-day forecast for Lone Tree
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 80°F | Patchy Smoke | 6 to 10 mph ENE | 23% |
| Tonight | 58°F | Patchy Smoke | 3 to 12 mph SSW | 15% |
| Wednesday | 87°F | Patchy Smoke then Sunny | 3 to 9 mph NNE | 0% |
| Wednesday Night | 62°F | Mostly Clear | 8 to 12 mph SSE | 6% |
| Thursday | 95°F | Sunny | 3 to 9 mph NNW | 0% |
| Thursday Night | 64°F | Clear | 7 to 10 mph SSE | 3% |
| Friday | 97°F | Sunny | 6 to 9 mph NE | 0% |
| Friday Night | 68°F | Mostly Clear | 9 to 15 mph SSE | 1% |
| Saturday | 98°F | Sunny | 7 to 14 mph NNW | 0% |
| Saturday Night | 68°F | Partly Cloudy | 9 to 13 mph SSE | 1% |
| Sunday | 98°F | Sunny | 5 to 9 mph E | 7% |
| Sunday Night | 69°F | Partly Cloudy | 10 mph SW | 4% |
| Monday | 97°F | Sunny | 7 to 10 mph NW | 11% |
| Monday Night | 67°F | Partly Cloudy | 6 to 10 mph WNW | 14% |
Forecast source: National Weather Service (api.weather.gov) for Lone Tree (39.531, -104.871). Updated through the day.
Growing snapshot for Lone Tree
Last spring frost
May 5
First fall frost
Oct 8
Growing season
154 days
Hardiness zone
6a
More local growing data for Lone Tree: nearby ZIP 80124 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
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Climate data from the nearest NOAA station, Denver Centennial Ap, Co (3.4 mi from Lone Tree). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.