Brighton, CO Weather & Growing Conditions
This Afternoon
80°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms before 3pm, then showers and thunderstorms likely. Partly sunny. High near 80, with temperatures falling to around 72 in the afternoon. Northeast wind 3 to 9 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 80°F | Chance Showers And Thunderstorms | 3 to 9 mph NE | 64% |
| Tonight | 52°F | Chance Showers And Thunderstorms then Partly Cloudy | 2 to 8 mph S | 44% |
| Sunday | 71°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 2 to 9 mph NNE | 34% |
| Sunday Night | 50°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 1 to 8 mph ENE | 23% |
| Monday | 74°F | Mostly Sunny | 1 to 10 mph NE | 1% |
| Monday Night | 51°F | Partly Cloudy | 2 to 10 mph SSE | 7% |
| Tuesday | 80°F | Sunny | 2 to 7 mph NNE | 3% |
| Tuesday Night | 55°F | Partly Cloudy | 3 to 9 mph S | 13% |
| Wednesday | 81°F | Partly Sunny | 2 to 6 mph N | 2% |
| Wednesday Night | 55°F | Mostly Cloudy | 2 to 6 mph S | 11% |
| Thursday | 82°F | Mostly Sunny | 2 to 9 mph NE | 4% |
| Thursday Night | 57°F | Mostly Cloudy | 3 to 9 mph SE | 9% |
| Friday | 81°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 2 to 9 mph S | 21% |
| Friday Night | 56°F | Slight Chance Rain Showers then Partly Cloudy | 3 to 9 mph S | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Brighton, CO
Last spring frost
May 3
First fall frost
Oct 7
Growing season
155 days
Hardiness zone
5b
Explore more for Brighton, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Brighton 3 Se, Co (2 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.