Pittsburg, CA Weather & Growing Conditions
Today
101°F
Sunny
Sunny. High near 101, with temperatures falling to around 98 in the afternoon. West southwest wind around 15 mph, with gusts as high as 23 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 101°F | Sunny | 15 mph WSW | 0% |
| Tonight | 61°F | Clear | 14 to 17 mph WSW | 0% |
| Wednesday | 96°F | Sunny | 12 to 17 mph W | 0% |
| Wednesday Night | 61°F | Clear | 14 to 17 mph WSW | 0% |
| Thursday | 93°F | Sunny | 12 to 16 mph W | 0% |
| Thursday Night | 63°F | Clear | 16 mph WSW | 0% |
| Friday | 99°F | Sunny | 10 to 15 mph WSW | 0% |
| Friday Night | 64°F | Clear | 16 mph WSW | 0% |
| Saturday | 96°F | Sunny | 9 to 14 mph WSW | 0% |
| Saturday Night | 66°F | Mostly Clear | 15 mph WSW | 0% |
| Sunday | 91°F | Sunny | 12 to 16 mph WSW | 0% |
| Sunday Night | 62°F | Mostly Clear | 16 to 21 mph WSW | 0% |
| Monday | 85°F | Sunny | 14 to 21 mph WSW | 0% |
| Monday Night | 60°F | Mostly Clear | 18 mph WSW | 0% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Pittsburg, CA
Last spring frost
Jan 9
First fall frost
Dec 14
Growing season
343 days
Hardiness zone
9b
Explore more for Pittsburg, CA: full frost dates · planting calendar · California frost dates
Climate data from the nearest NOAA station, Concord Buchanan Fld, Ca (7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.