Waterloo, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Waterloo, a community in San Joaquin County, California.
Overnight
56°F
Clear
Clear. Low around 56, with temperatures rising to around 58 overnight. West southwest wind around 2 mph.
7-day forecast for Waterloo
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 56°F | Clear | 2 mph WSW | 0% |
| Saturday | 90°F | Sunny | 1 to 5 mph WNW | 0% |
| Saturday Night | 57°F | Partly Cloudy | 1 to 5 mph NNW | 0% |
| Sunday | 84°F | Partly Sunny | 2 to 6 mph NW | 0% |
| Sunday Night | 56°F | Mostly Cloudy | 6 mph NW | 0% |
| Monday | 87°F | Sunny | 5 mph WNW | 0% |
| Monday Night | 56°F | Mostly Clear | 5 mph NW | 0% |
| Tuesday | 88°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 57°F | Clear | 5 mph NNW | 0% |
| Wednesday | 92°F | Sunny | 5 mph NW | 0% |
| Wednesday Night | 61°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Thursday | 96°F | Sunny | 2 to 6 mph NW | 0% |
| Thursday Night | 61°F | Mostly Clear | 6 mph NW | 0% |
| Friday | 91°F | Sunny | 2 to 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 Sep 19, 2026.