Waterloo, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Waterloo, a community in San Joaquin County, California.
Overnight
64°F
Clear
Clear. Low around 64, with temperatures rising to around 66 overnight. North wind around 3 mph.
7-day forecast for Waterloo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Clear | 3 mph N | 0% |
| Tuesday | 100°F | Sunny | 3 to 8 mph NW | 0% |
| Tuesday Night | 62°F | Clear | 5 to 8 mph NNW | 0% |
| Wednesday | 99°F | Sunny | 5 to 8 mph NW | 0% |
| Wednesday Night | 61°F | Clear | 3 to 8 mph NW | 0% |
| Thursday | 99°F | Sunny | 3 to 9 mph NW | 0% |
| Thursday Night | 63°F | Clear | 5 to 9 mph NW | 0% |
| Friday | 99°F | Sunny | 5 to 8 mph NW | 0% |
| Friday Night | 65°F | Clear | 2 to 8 mph NNW | 0% |
| Saturday | 101°F | Sunny | 5 to 8 mph NW | 0% |
| Saturday Night | 66°F | Clear | 2 to 8 mph NW | 0% |
| Sunday | 99°F | Sunny | 3 to 8 mph NW | 0% |
| Sunday Night | 63°F | Clear | 3 to 8 mph NW | 0% |
| Monday | 95°F | Sunny | 7 mph NW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Waterloo (38.036, -121.185). Updated through the day.
Growing snapshot for Waterloo
Last spring frost
Feb 9
First fall frost
Dec 5
Growing season
301 days
Hardiness zone
9b
More local growing data for Waterloo: nearby ZIP 95212 weather · frost dates · planting calendar · California frost dates
Nearby towns & communities
Acampo
August
Collierville
Country Club
Dogtown
Escalon
Farmington
French Camp
Garden Acres
Kennedy
Lathrop
Lincoln Village
Linden
Lockeford
Lodi
Manteca
Morada
Peters
Ripon
Stockton
Taft Mosswood
Terminous
Thornton
Tracy
Valley Home
Victor
Woodbridge
Climate data from the nearest NOAA station, Lodi, Ca (4.9 mi from Waterloo). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.