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Riverdale Park, CA Weather & Growing Conditions

Local forecast, frost dates, hardiness zone and planting guidance for Riverdale Park, a community in Stanislaus County, California.

Today
67°F
Light Rain Likely
Rain likely before 4pm. Partly sunny. High near 67, with temperatures falling to around 61 in the afternoon. South southeast wind 3 to 9 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

7-day forecast for Riverdale Park

WhenTempForecastWindPrecip
Today 67°F Light Rain Likely 3 to 9 mph SSE 61%
Tonight 49°F Haze then Partly Cloudy 1 to 9 mph NNW 4%
Wednesday 69°F Sunny 6 to 12 mph NW 0%
Wednesday Night 49°F Partly Cloudy 2 to 6 mph NW 0%
Thursday 71°F Sunny 2 to 9 mph NW 0%
Thursday Night 45°F Clear then Patchy Fog 0 to 7 mph NW 0%
Friday 72°F Patchy Fog then Sunny 1 to 5 mph NNW 0%
Friday Night 47°F Clear 0 to 5 mph NNW 0%
Saturday 75°F Sunny 3 mph ESE 0%
Saturday Night 49°F Mostly Clear 2 mph NE 0%
Sunday 75°F Sunny 0 to 5 mph NNW 0%
Sunday Night 50°F Partly Cloudy 0 to 3 mph NNW 0%
Monday 74°F Mostly Sunny 0 to 6 mph NNW 0%
Monday Night 50°F Partly Cloudy 2 to 6 mph NW 0%

Forecast source: National Weather Service (api.weather.gov) for Riverdale Park (37.602, -121.039). Updated through the day.

Growing snapshot for Riverdale Park

Last spring frost
Jan 31
First fall frost
Dec 5
Growing season
312 days
Hardiness zone
9b

More local growing data for Riverdale Park: nearby ZIP 95351 weather · frost dates · planting calendar · California frost dates

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Climate data from the nearest NOAA station, Modesto City Co Ap, Ca (2.6 mi from Riverdale Park). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.