Pleasanton, CA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Pleasanton, a city in Alameda County, California.
Today
62°F
Light Rain
Rain. Mostly cloudy. High near 62, with temperatures falling to around 59 in the afternoon. South wind 1 to 6 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Pleasanton
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 62°F | Light Rain | 1 to 6 mph S | 80% |
| Tonight | 47°F | Chance Light Rain then Patchy Fog | 1 mph E | 30% |
| Wednesday | 66°F | Areas Of Fog then Sunny | 1 to 6 mph NNW | 1% |
| Wednesday Night | 48°F | Partly Cloudy then Patchy Fog | 0 to 3 mph W | 0% |
| Thursday | 71°F | Areas Of Fog then Sunny | 0 to 3 mph NNW | 0% |
| Thursday Night | 48°F | Mostly Clear | 0 to 3 mph NNW | 0% |
| Friday | 73°F | Sunny | 2 mph N | 0% |
| Friday Night | 49°F | Clear | 2 mph N | 0% |
| Saturday | 76°F | Sunny | 0 to 3 mph NNE | 0% |
| Saturday Night | 50°F | Mostly Clear | 0 to 3 mph N | 0% |
| Sunday | 74°F | Mostly Sunny | 0 to 3 mph NNW | 0% |
| Sunday Night | 51°F | Partly Cloudy | 0 to 3 mph NNW | 0% |
| Monday | 71°F | Partly Sunny | 0 to 3 mph W | 1% |
| Monday Night | 50°F | Partly Cloudy | 0 to 3 mph W | 1% |
Forecast source: National Weather Service (api.weather.gov) for Pleasanton (37.667, -121.881). Updated through the day.
Growing snapshot for Pleasanton
Last spring frost
Feb 15
First fall frost
Dec 2
Growing season
292 days
Hardiness zone
9b
More local growing data for Pleasanton: nearby ZIP 94566 weather · frost dates · planting calendar · California frost dates
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Livermore
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Union City
Climate data from the nearest NOAA station, Livermore, Ca (3.6 mi from Pleasanton). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 3, 2026.