San Luis, CO Weather & Growing Conditions
Today
84°F
Mostly Sunny then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 84. West wind 5 to 15 mph. Chance of precipitation is 30%.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 84°F | Mostly Sunny then Chance Showers And Thunderstorms | 5 to 15 mph W | 34% |
| Tonight | 57°F | Chance Showers And Thunderstorms then Partly Cloudy | 5 to 15 mph SE | 30% |
| Wednesday | 86°F | Sunny | 5 to 15 mph W | 9% |
| Wednesday Night | 55°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 15 mph SE | 14% |
| Thursday | 86°F | Sunny | 5 to 15 mph W | 6% |
| Thursday Night | 56°F | Mostly Clear | 5 to 15 mph ENE | 5% |
| Friday | 86°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 15 mph NE | 13% |
| Friday Night | 56°F | Partly Cloudy | 10 to 15 mph SE | 1% |
| Saturday | 86°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 15% |
| Saturday Night | 57°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 10 to 15 mph SSE | 15% |
| Sunday | 86°F | Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 15% |
| Sunday Night | 57°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 10 to 15 mph SSE | 15% |
| Monday | 85°F | Sunny then Chance Showers And Thunderstorms | 10 mph WNW | 27% |
| Monday Night | 56°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 5 to 10 mph SSE | 24% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for San Luis, CO
Last spring frost
May 31
First fall frost
Sep 23
Growing season
115 days
Hardiness zone
5b
Explore more for San Luis, CO: full frost dates · planting calendar · Colorado frost dates
Climate data from the nearest NOAA station, San Luis 1 S, Co (4.8 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.