Atwater, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Atwater, a city in Merced County, California.

This Afternoon

69°F

Chance Light Rain

A chance of rain before 4pm. Partly sunny. High near 69, with temperatures falling to around 63 in the afternoon. Northwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Atwater

When	Temp	Forecast	Wind	Precip
This Afternoon	69°F	Chance Light Rain	5 mph NW	35%
Tonight	48°F	Partly Cloudy	0 to 10 mph N	10%
Wednesday	69°F	Sunny	5 to 10 mph NW	0%
Wednesday Night	47°F	Partly Cloudy	0 to 5 mph NNW	0%
Thursday	70°F	Mostly Sunny	0 to 5 mph NNW	0%
Thursday Night	45°F	Mostly Clear	0 to 5 mph N	0%
Friday	72°F	Sunny	0 to 5 mph NNW	0%
Friday Night	47°F	Mostly Clear	0 to 5 mph NNW	0%
Saturday	75°F	Sunny	0 to 5 mph SSE	0%
Saturday Night	49°F	Mostly Clear	0 mph	0%
Sunday	76°F	Sunny	0 to 5 mph NNW	0%
Sunday Night	50°F	Partly Cloudy	0 to 5 mph NNW	0%
Monday	74°F	Mostly Sunny	0 to 5 mph NW	0%
Monday Night	50°F	Partly Cloudy	0 to 5 mph NW	1%

Forecast source: National Weather Service (api.weather.gov) for Atwater (37.354, -120.597). Updated through the day.

Growing snapshot for Atwater

Last spring frost

Mar 3

First fall frost

Nov 24

Growing season

263 days

Hardiness zone

More local growing data for Atwater: nearby ZIP 95388 weather · frost dates · planting calendar · California frost dates

Nearby towns & communities

Ballico Bear Creek Cressey Delhi Dos Palos Dos Palos Y El Nido Franklin Gustine Hilmar-Irwin Le Grand Livingston Los Banos McSwain Merced Planada Santa Nella Snelling South Dos Palos Stevinson Tuttle University of California-Merced Volta Winton

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Climate data from the nearest NOAA station, Merced, Ca (10.2 mi from Atwater). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.