California Polytechnic State University, CA Weather & Growing Conditions
This Afternoon
84°F
Mostly Sunny
Mostly sunny, with a high near 84. West northwest wind 5 to 15 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Mostly Sunny | 5 to 15 mph WNW | 0% |
| Tonight | 56°F | Patchy Fog | 0 to 5 mph NNW | 0% |
| Sunday | 81°F | Patchy Fog then Mostly Cloudy | 0 to 10 mph WNW | 1% |
| Sunday Night | 55°F | Patchy Fog | 5 mph W | 3% |
| Monday | 76°F | Patchy Fog then Partly Sunny | 5 to 10 mph W | 2% |
| Monday Night | 54°F | Patchy Fog | 5 to 10 mph NW | 2% |
| Tuesday | 76°F | Patchy Fog then Mostly Sunny | 5 to 10 mph NW | 0% |
| Tuesday Night | 58°F | Mostly Clear | 5 to 10 mph NNW | 0% |
| Wednesday | 86°F | Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 62°F | Mostly Clear | 0 to 5 mph N | 0% |
| Thursday | 86°F | Sunny | 0 to 5 mph SSE | 0% |
| Thursday Night | 61°F | Partly Cloudy | 0 to 5 mph ESE | 0% |
| Friday | 81°F | Mostly Sunny | 0 to 5 mph SSW | 1% |
| Friday Night | 59°F | Partly Cloudy | 0 to 5 mph E | 3% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for California Polytechnic State University, CA
Last spring frost
Jan 16
First fall frost
Dec 25
Growing season
349 days
Hardiness zone
9b
Explore more for California Polytechnic State University, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, San Luis Obispo Poly, Ca (0.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.