Florissant, CO Weather & Growing Conditions
Today
77°F
Patchy Smoke
Patchy smoke before noon, then patchy smoke and a chance of showers and thunderstorms. Partly sunny. High near 77, with temperatures falling to around 66 in the afternoon. South southeast wind 2 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 77°F | Patchy Smoke | 2 to 10 mph SSE | 51% |
| Tonight | 50°F | Patchy Smoke then Partly Cloudy | 6 to 10 mph SSW | 15% |
| Wednesday | 82°F | Sunny | 6 to 12 mph WNW | 3% |
| Wednesday Night | 51°F | Mostly Clear | 6 to 10 mph SW | 2% |
| Thursday | 84°F | Sunny | 6 to 9 mph WNW | 5% |
| Thursday Night | 52°F | Mostly Clear | 3 to 10 mph NW | 4% |
| Friday | 85°F | Sunny | 5 to 10 mph NNW | 0% |
| Friday Night | 53°F | Mostly Clear | 6 to 10 mph S | 1% |
| Saturday | 86°F | Sunny | 6 to 9 mph NW | 5% |
| Saturday Night | 54°F | Partly Cloudy | 6 to 9 mph NW | 1% |
| Sunday | 86°F | Sunny then Slight Chance Showers And Thunderstorms | 3 to 8 mph WNW | 16% |
| Sunday Night | 55°F | Partly Cloudy | 8 mph NW | 8% |
| Monday | 84°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 9 mph E | 39% |
| Monday Night | 54°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 9 mph NW | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Florissant, CO
Last spring frost
Jun 2
First fall frost
Sep 19
Growing season
108 days
Hardiness zone
5b
Explore more for Florissant, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, Lake George 8 Sw, Co (10.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.