California, PA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for California, a borough in Washington County, Pennsylvania.
Tonight
66°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms between midnight and 2am, then showers and thunderstorms. Mostly cloudy, with a low around 66. South wind 2 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
7-day forecast for California
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 66°F | Mostly Cloudy then Chance Showers And Thunderstorms | 2 to 7 mph S | 78% |
| Sunday | 78°F | Showers And Thunderstorms | 9 mph SW | 97% |
| Sunday Night | 58°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 6 to 9 mph N | 66% |
| Monday | 70°F | Chance Rain Showers | 10 mph NE | 46% |
| Monday Night | 56°F | Showers And Thunderstorms Likely | 10 mph NE | 70% |
| Tuesday | 67°F | Showers And Thunderstorms Likely | 8 to 13 mph E | 72% |
| Tuesday Night | 54°F | Showers And Thunderstorms | 14 mph E | 77% |
| Wednesday | 64°F | Showers And Thunderstorms Likely | 14 mph E | 70% |
| Wednesday Night | 52°F | Rain Showers Likely | 9 to 14 mph E | 56% |
| Thursday | 65°F | Rain Showers Likely | 10 mph E | 56% |
| Thursday Night | 50°F | Slight Chance Rain Showers | 5 to 9 mph NE | 22% |
| Friday | 69°F | Partly Sunny | 5 to 8 mph NE | 14% |
| Friday Night | 49°F | Partly Cloudy | 3 to 8 mph N | 13% |
| Saturday | 70°F | Mostly Sunny | 5 to 9 mph N | 8% |
Forecast source: National Weather Service (api.weather.gov) for California (40.067, -79.912). Updated through the day.
Growing snapshot for California
Last spring frost
Apr 13
First fall frost
Nov 5
Growing season
205 days
Hardiness zone
6b
More local growing data for California: nearby ZIP 15419 weather · frost dates · planting calendar · Pennsylvania frost dates
Nearby towns & communities
Aaronsburg
Allenport
Arnold City
Atlasburg
Avella
Baidland
Beallsville
Belle Vernon
Bentleyville
Bulger
Burgettstown
Canonsburg
Cecil-Bishop
Claysville
Cokeburg
Cross Creek
Deemston
Donora
Dunlevy
East Marianna
East Washington
Eighty Four
Ellsworth
Elrama
Fairhope
Fayette City
Finleyville
Fredericktown
Green Hills
Hendersonville
Climate data from the nearest NOAA station, Charleroi Lock 4, Pa (6.2 mi from California). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.