Atwater, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Atwater, a city in Merced County, California.
This Afternoon
85°F
Sunny
Sunny, with a high near 85. Northwest wind around 10 mph, with gusts as high as 20 mph.
7-day forecast for Atwater
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 85°F | Sunny | 10 mph NW | 0% |
| Tonight | 56°F | Clear | 0 to 10 mph NW | 0% |
| Saturday | 90°F | Sunny | 0 to 5 mph NW | 0% |
| Saturday Night | 59°F | Partly Cloudy | 0 to 5 mph NW | 0% |
| Sunday | 88°F | Partly Sunny | 0 to 10 mph NW | 0% |
| Sunday Night | 59°F | Partly Cloudy | 5 to 10 mph NW | 0% |
| Monday | 89°F | Sunny | 5 mph NW | 0% |
| Monday Night | 59°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 91°F | Sunny | 5 mph NW | 0% |
| Tuesday Night | 61°F | Mostly Clear | 0 to 5 mph NW | 0% |
| Wednesday | 95°F | Sunny | 0 to 5 mph NW | 0% |
| Wednesday Night | 63°F | Mostly Clear | 0 to 5 mph NNW | 0% |
| Thursday | 98°F | Sunny | 0 to 5 mph WNW | 0% |
| Thursday Night | 64°F | Mostly Clear | 5 mph NW | 0% |
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
9b
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
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 Sep 19, 2026.