Pleasanton, California Weather
Summer heat deepens across the valleys. Day 15 of summer. Read this microseason across nine climate regions →
Pleasanton weather forecast — hour by hour, 7-day outlook, NOAA radar
- TodayJul 5Overcast——82°57°—
- MondayJul 6Overcast——78°52°-4°
- TuesdayJul 7Overcast——76°55°-2°
- WednesdayJul 8Clear——83°53°+7°
- ThursdayJul 9Clear——86°57°+3°
- FridayJul 10Overcast——89°57°+3°
- SaturdayJul 11Overcast——92°63°+3°
AQI 36 (Good), driven by PM2.5. AQI flat over the last 6 hours (within ±3 points). PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.72 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
OK No precautions needed for the general population; unusually sensitive individuals may consider limiting prolonged outdoor exertion.
What's driving it
PM × Wind × Precip
PM2.5 at 8.1 µg/m³ (AQI 45) with a 0.72 fine-to-coarse ratio and 1 mph wind — combustion smoke trapped in calm air, not road dust.
- PM2.5/PM10
- 0.72
- Wind
- calm
- Recent rain
- 0h in last 6h
- Pattern
- stagnant smoke
Trends
Seven days of AQI and PM2.5.
Hourly air-quality data from the Copernicus Atmosphere Monitoring Service, charted across the past and next several days. Dashed lines mark the AQI breakpoints at 50 (Good → Moderate) and 100 (Moderate → Unhealthy for Sensitive Groups).








































If the first of July be rainy weather, 'twill rain more or less for four weeks together.
- Moonrise
- 11:26 PM
- Moonset
- 11:26 AM
- In sign
- ♓︎ Pisces
Summer heat deepens across the valleys
Pleasanton at a glance
- Today vs. normal: 72°F — typical for the season
- Last frost: April 2 (climatological average for this latitude)
- Microseason: Jul 1–5
- Planting window: Harvest early potatoes. Begin drying onions on the surface.
ZIP codes: 94566, 94588
16-Day Forecast — Pleasanton
- Sun82°57°1%
- Mon78°52°0%
- Tue76°55°0%
- Wed83°53°0%
- Thu86°57°0%
- Fri89°57°0%
- Sat92°63°0%
- Sun83°66°1%
- Mon95°70°3%
- Tue94°65°4%
- Wed92°63°0%
- Thu94°63°3%
- Fri98°69°0%
- Sat92°65°0%
- Sun88°64°3%
- Mon88°60°3%
Forecast data from Open-Meteo (CC BY 4.0).
Live wind & temperature near Pleasanton
Right now in the garden
Peak growing season
As of July 5, the growing season is at its peak — frost is months away. Continue succession-planting beans and summer squash. Start fall brassicas (broccoli, cabbage, kale) from seed indoors for transplanting in late summer.
Microseason · July 1–5
Summer heat deepens across the valleys
Inland temperatures exceed 95°F regularly; fire danger reaches moderate to high across most of the region.
Day 186 of 365 · Wedge 37 of 72
Planting calendar
| Month | Plant | Harvest |
|---|---|---|
| January | — | — |
| February | — | — |
| March | — | — |
| April | lettuce, peas, spinach, radishes | — |
| May | lettuce, peas, spinach, radishes, tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| June | tomatoes, peppers, beans, squash | lettuce, peas, radishes |
| July | tomatoes, peppers, beans, squash | tomatoes, beans, summer squash |
| August | — | tomatoes, beans, summer squash |
| September | fall brassicas, garlic (overwinter), carrots | tomatoes, beans, summer squash |
| October | fall brassicas, garlic (overwinter), carrots | winter squash, tomatoes (last) |
| November | — | — |
| December | — | — |
A year in weather
Pleasanton peaks at about 69°F in July and bottoms near 49°F in January; January brings the heaviest rain (3.4 inches) and July the least (0.0 inches).
| Month | Mean temp | Precip | Rainy days |
|---|---|---|---|
| January | 49° | 3.4″ | 13 |
| February | 51° | 3.3″ | 12 |
| March | 53° | 2.7″ | 13 |
| April | 57° | 1.4″ | 9 |
| May | 63° | 0.5″ | 4 |
| June | 67° | 0.0″ | 1 |
| July | 69° | 0.0″ | 1 |
| August | 69° | 0.0″ | 1 |
| September | 69° | 0.1″ | 1 |
| October | 64° | 0.5″ | 4 |
| November | 55° | 2.1″ | 8 |
| December | 49° | 3.0″ | 12 |
Regional context
Drawing on NOAA NCEI 1991-2020 normals, Pleasanton's January averages 49°F and July 69°F — 21°F apart — while precipitation totals roughly 17.2 inches over some 79 days.
Cool-season fronts carry Pleasanton's rain: January logs 3.4 inches on 13.3 days, against July's 0.0 inches on 0.9 — winter does the heavy lifting in Pleasanton. That cool-season-wet pattern aligns Pleasanton with places like Dublin, CA, Sunol, CA and Livermore, CA.
Freezes are uncommon in Pleasanton, where the coldest month averages 49°F; cool-season crops grow fall through spring. Summer heat in July (about 69°F) is the binding constraint, not cold. Pleasanton's coastal lots stay 4-7°F milder overnight than Pleasanton's inland parcels.
Similar climates: Dublin, CA, Sunol, CA, Livermore, CA, San Ramon, CA, Norris Canyon, CA.
Frequently asked
- When does it freeze in Pleasanton?
- Frost typically leaves Pleasanton by mid-April and returns to Pleasanton near mid-November.
- What is the rainy season in Pleasanton?
- Pleasanton sees its heaviest rain in January (around 3.4 inches), part of roughly 17 inches a year.
- What is the warmest month in Pleasanton?
- On average July tops the year in Pleasanton at about 69°F.
- What is the coldest month in Pleasanton?
- The coldest stretch in Pleasanton falls in January, around 49°F on average.
- When can I start a vegetable garden in Pleasanton?
- Hardy spring crops go in near mid-April in Pleasanton; tender peppers and squash wait 10–14 days.
- How many rainy days does Pleasanton get?
- Pleasanton records around 79 days of measurable precipitation annually.
- What hardiness zone is Pleasanton?
- Because Pleasanton bottoms near 49°F in January, that winter low sets Pleasanton's USDA zone — verify by ZIP.
- What is the 10-day forecast for Pleasanton?
- Pleasanton's extended outlook — daily high and low temperatures and precipitation chances for each upcoming day — is in the daily forecast above.
- Will it rain this week in Pleasanton?
- See this week's day-by-day rain chances for Pleasanton in the daily forecast above, and the next 24 hours in the hourly chart.
- What is the weather like right now in Pleasanton?
- Current conditions for Pleasanton and the next 24 hours — temperature, precipitation chance, and wind by the hour — are in the hourly forecast chart above.
- How often is the Pleasanton forecast updated?
- The Pleasanton forecast on this page is built from Open-Meteo weather-model data and refreshes regularly through the day.
- When are sunrise and sunset in Pleasanton?
- Today's sunrise and sunset times for Pleasanton are in the Almanac section above, along with civil dawn, civil dusk, and day length. Day length is longest near the summer solstice and shortest near the winter solstice.
- How accurate is the weather forecast for Pleasanton?
- The next few days in Pleasanton's forecast are the most reliable; accuracy declines beyond about a week as weather-model uncertainty grows.
Climate
The hot-summer Mediterranean climate of Pleasanton, California carries typical Januarys near 49°F and Julys around 69°F — 20°F of seasonal travel.
Pleasanton sees close to 17 inches of precipitation annually, falling across some 79 wet days.
From 37.7°N, Pleasanton sees a 20°F seasonal swing that governs Pleasanton's planting and frost windows.
ZIP codes in Pleasanton
- 94566
- 94588