Brighton, CO Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Brighton, a city in Adams County, Colorado.
Today
79°F
Patchy Smoke
Patchy smoke. Mostly sunny. High near 79, with temperatures falling to around 77 in the afternoon. East wind 7 to 13 mph, with gusts as high as 21 mph.
7-day forecast for Brighton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 79°F | Patchy Smoke | 7 to 13 mph E | 9% |
| Tonight | 56°F | Patchy Smoke | 3 to 14 mph NNE | 10% |
| Wednesday | 87°F | Patchy Smoke | 5 to 12 mph NNE | 0% |
| Wednesday Night | 60°F | Mostly Clear | 5 to 12 mph S | 2% |
| Thursday | 96°F | Sunny | 3 to 8 mph N | 0% |
| Thursday Night | 63°F | Mostly Clear | 5 to 8 mph SSE | 2% |
| Friday | 98°F | Sunny | 3 to 9 mph E | 0% |
| Friday Night | 68°F | Mostly Clear | 8 to 12 mph SSE | 0% |
| Saturday | 100°F | Sunny | 5 to 9 mph NW | 1% |
| Saturday Night | 68°F | Partly Cloudy | 6 to 10 mph WSW | 0% |
| Sunday | 100°F | Sunny | 3 to 9 mph NNW | 5% |
| Sunday Night | 68°F | Partly Cloudy | 5 to 9 mph W | 3% |
| Monday | 99°F | Sunny | 5 to 12 mph NNW | 11% |
| Monday Night | 66°F | Mostly Cloudy | 5 to 12 mph W | 13% |
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
Comanche Creek
Commerce City
Derby
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 Aug 4, 2026.