Brighton, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brighton, a city in Adams County, Colorado.
This Afternoon
56°F
Sunny
Sunny. High near 56, with temperatures falling to around 51 in the afternoon. Northeast wind around 7 mph.
7-day forecast for Brighton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 56°F | Sunny | 7 mph NE | 0% |
| Tonight | 34°F | Mostly Clear | 5 mph SSE | 0% |
| Wednesday | 56°F | Mostly Sunny | 2 to 7 mph NNE | 4% |
| Wednesday Night | 34°F | Mostly Cloudy | 5 mph NW | 4% |
| Thursday | 57°F | Sunny | 5 mph SSE | 0% |
| Thursday Night | 34°F | Partly Cloudy | 6 mph SSW | 1% |
| Friday | 57°F | Mostly Sunny | 2 to 6 mph NNE | 5% |
| Friday Night | 34°F | Mostly Clear | 5 mph SSW | 5% |
| Saturday | 59°F | Sunny | 5 mph SSE | 1% |
| Saturday Night | 33°F | Mostly Clear | 5 mph S | 0% |
| Sunday | 67°F | Sunny | 6 mph SSE | 0% |
| Sunday Night | 38°F | Mostly Clear | 6 mph SSW | 0% |
| Monday | 65°F | Sunny | 6 mph SE | 0% |
| Monday Night | 38°F | Partly Cloudy | 5 mph SSE | 0% |
Forecast source: National Weather Service (api.weather.gov) for Brighton (39.966, -104.794). Updated through the day.
Growing snapshot for Brighton
Last spring frost
May 3
First fall frost
Oct 7
Growing season
155 days
Hardiness zone
5b
More local growing data for Brighton: nearby ZIP 80601 weather · frost dates · planting calendar · Colorado frost dates
Nearby towns & communities
Bennett
Berkley
Byers
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Federal Heights
Lochbuie
Northglenn
Peoria
Shaw Heights
Sherrelwood
Strasburg
Thornton
Todd Creek
Twin Lakes
Welby
Westminster
Climate data from the nearest NOAA station, Brighton 3 Se, Co (2 mi from Brighton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.