Bow Mar, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bow Mar, a town in Jefferson County, Colorado.
This Afternoon
56°F
Sunny
Sunny. High near 56, with temperatures falling to around 51 in the afternoon. East northeast wind around 3 mph.
7-day forecast for Bow Mar
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Sunny | 3 mph ENE | 0% |
| Tonight | 33°F | Mostly Clear | 3 mph S | 0% |
| Wednesday | 56°F | Mostly Sunny then Slight Chance Rain Showers | 2 to 7 mph N | 19% |
| Wednesday Night | 34°F | Chance Rain Showers then Mostly Cloudy | 1 to 6 mph NW | 30% |
| Thursday | 57°F | Sunny | 2 to 6 mph ESE | 0% |
| Thursday Night | 33°F | Partly Cloudy | 3 mph SSW | 1% |
| Friday | 57°F | Mostly Sunny | 5 mph NNE | 8% |
| Friday Night | 33°F | Mostly Clear | 5 mph W | 8% |
| Saturday | 59°F | Sunny | 2 to 7 mph E | 1% |
| Saturday Night | 33°F | Clear | 2 to 6 mph WSW | 0% |
| Sunday | 68°F | Sunny | 3 to 8 mph S | 0% |
| Sunday Night | 38°F | Mostly Clear | 7 mph WSW | 0% |
| Monday | 66°F | Sunny | 3 to 7 mph SE | 0% |
| Monday Night | 38°F | Partly Cloudy | 5 mph SW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bow Mar (39.627, -105.051). Updated through the day.
Growing snapshot for Bow Mar
Last spring frost
May 2
First fall frost
Oct 11
Growing season
160 days
Hardiness zone
6a
More local growing data for Bow Mar: nearby ZIP 80123 weather · frost dates · planting calendar · Colorado frost dates
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West Pleasant View
Wheat Ridge
Climate data from the nearest NOAA station, Marston Fltr Plt, Co (0.4 mi from Bow Mar). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.