Current Conditions

Walnut Creek, California

69°F21°C

Clear

Wind

WSW 9 mph14 km/h

Humidity

65%

Cloud Cover

As of Thursday, July 23, 2026 at 10:53 AM PDT

Today's Outlook

Day

Mostly clear and warm, with a high of 77°F25°C and morning low of 61°F16°C. Breezy from the WSW at 10 to 11 mph15 to 18 km/h.

Night

Mostly clear, with a low around 58°F14°C. Breezy from the WSW at 8 to 9 mph12 to 15 km/h.

7-Day Forecast

Day	Condition	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Wind (mph)
ThursdayJul 23	Clear	High 77°F25°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 20%	Wind WSW 9 mph14 km/h	Thursday: Mostly clear and warm, with a high of 77°F25°C and morning low of 61°F16°C. Breezy from the WSW at 10 to 11 mph15 to 18 km/h. Thursday Night: Mostly clear, with a low around 58°F14°C. Breezy from the WSW at 8 to 9 mph12 to 15 km/h.
FridayJul 24	Clear	High 78°F26°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 18%	Wind WSW 9 mph14 km/h	Friday: Mostly clear and warm, with a high of 78°F26°C and morning low of 61°F16°C. Breezy from the WSW at 10 to 12 mph16 to 19 km/h. Friday Night: Mostly clear, with a low around 57°F14°C. Breezy from the SW at 8 to 10 mph12 to 16 km/h.
SaturdayJul 25	Clear	High 79°F26°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 21%	Wind WSW 9 mph15 km/h	Saturday: Mostly clear and warm, with a high of 79°F26°C and morning low of 62°F17°C. Breezy from the WSW at 10 to 12 mph16 to 19 km/h. Saturday Night: Mostly clear, with a low around 58°F14°C. Breezy from the SW at 8 to 10 mph13 to 15 km/h.
SundayJul 26	Clear	High 77°F25°C	Low 58°F14°C	Precip 0 in0 mm—	Cloud 23%	Wind WSW 9 mph15 km/h	Sunday: Mostly clear and warm, with a high of 77°F25°C and morning low of 61°F16°C. Breezy from the WSW at 10 to 12 mph17 to 19 km/h. Sunday Night: Partly cloudy, with a low around 58°F14°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h.
MondayJul 27	Clear	High 81°F27°C	Low 57°F14°C	Precip 0 in0 mm—	Cloud 18%	Wind WSW 8 mph13 km/h	Monday: Mostly clear and warm, with a high of 81°F27°C and morning low of 60°F16°C. Breezy from the WSW at 8 to 10 mph13 to 16 km/h. Monday Night: Mostly clear, with a low around 57°F14°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h.
TuesdayJul 28	Clear	High 82°F28°C	Low 58°F15°C	Precip 0 in0 mm—	Cloud 9%	Wind SW 8 mph12 km/h	Tuesday: Mostly clear and warm, with a high of 82°F28°C and morning low of 62°F17°C. Breezy from the WSW at 8 to 10 mph14 to 17 km/h. Tuesday Night: Mostly clear, with a low around 58°F15°C. Breezy from the SW at 7 to 8 mph11 to 14 km/h.
WednesdayJul 29	Clear	High 82°F28°C	Low 59°F15°C	Precip 0 in0 mm—	Cloud 13%	Wind SW 7 mph12 km/h	Wednesday: Mostly clear and warm, with a high of 82°F28°C and morning low of 62°F17°C. Breezy from the WSW at 8 to 10 mph13 to 17 km/h. Wednesday Night: Mostly clear, with a low around 59°F15°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h.

15-Day Forecast

	Day	High (°F)	Low (°F)	Precip (mm)	Cloud Cover (%)	Condition	Wind (mph)
	ThursdayJul 23	77°F25°C	58°F14°C	0 in0 mm· —	20%	Clear	WSW 9 mph14 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 61°F16°C. Breezy from the WSW at 10 to 11 mph15 to 18 km/h. NightMostly clear, with a low around 58°F14°C. Breezy from the WSW at 8 to 9 mph12 to 15 km/h.
	FridayJul 24	78°F26°C	57°F14°C	0 in0 mm· —	18%	Clear	WSW 9 mph14 km/h
DayMostly clear and warm, with a high of 78°F26°C and morning low of 61°F16°C. Breezy from the WSW at 10 to 12 mph16 to 19 km/h. NightMostly clear, with a low around 57°F14°C. Breezy from the SW at 8 to 10 mph12 to 16 km/h.
	SaturdayJul 25	79°F26°C	58°F14°C	0 in0 mm· —	21%	Clear	WSW 9 mph15 km/h
DayMostly clear and warm, with a high of 79°F26°C and morning low of 62°F17°C. Breezy from the WSW at 10 to 12 mph16 to 19 km/h. NightMostly clear, with a low around 58°F14°C. Breezy from the SW at 8 to 10 mph13 to 15 km/h.
	SundayJul 26	77°F25°C	58°F14°C	0 in0 mm· —	23%	Clear	WSW 9 mph15 km/h
DayMostly clear and warm, with a high of 77°F25°C and morning low of 61°F16°C. Breezy from the WSW at 10 to 12 mph17 to 19 km/h. NightPartly cloudy, with a low around 58°F14°C. Breezy from the SW at 8 to 10 mph13 to 16 km/h.
	MondayJul 27	81°F27°C	57°F14°C	0 in0 mm· —	18%	Clear	WSW 8 mph13 km/h
DayMostly clear and warm, with a high of 81°F27°C and morning low of 60°F16°C. Breezy from the WSW at 8 to 10 mph13 to 16 km/h. NightMostly clear, with a low around 57°F14°C. Breezy from the SW at 7 to 8 mph12 to 13 km/h.
	TuesdayJul 28	82°F28°C	58°F15°C	0 in0 mm· —	9%	Clear	SW 8 mph12 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 62°F17°C. Breezy from the WSW at 8 to 10 mph14 to 17 km/h. NightMostly clear, with a low around 58°F15°C. Breezy from the SW at 7 to 8 mph11 to 14 km/h.
	WednesdayJul 29	82°F28°C	59°F15°C	0 in0 mm· —	13%	Clear	SW 7 mph12 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 62°F17°C. Breezy from the WSW at 8 to 10 mph13 to 17 km/h. NightMostly clear, with a low around 59°F15°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h.
	ThursdayJul 30	82°F28°C	58°F15°C	0 in0 mm· —	15%	Clear	SW 8 mph12 km/h
DayMostly clear and warm, with a high of 82°F28°C and morning low of 62°F17°C. Breezy from the WSW at 8 to 10 mph14 to 17 km/h. NightMostly clear, with a low around 58°F15°C. Breezy from the SW at 7 to 8 mph11 to 13 km/h.
	FridayJul 31	84°F29°C	58°F14°C	0 in0 mm· —	18%	Clear	SW 7 mph11 km/h
DayMostly clear and warm, with a high of 84°F29°C and morning low of 61°F16°C. Breezy from the WSW at 8 to 10 mph12 to 16 km/h. NightMostly clear, with a low around 58°F14°C. Breezy from the SW at 6 to 8 mph10 to 12 km/h.
	SaturdayAug 1	87°F31°C	59°F15°C	0 in0 mm· —	14%	Clear	SW 7 mph11 km/h
DayMostly clear and hot, with a high of 87°F31°C and morning low of 63°F17°C. Breezy from the WSW at 7 to 10 mph12 to 15 km/h. NightMostly clear, with a low around 59°F15°C. Breezy from the SW at 6 to 8 mph10 to 12 km/h.
	SundayAug 2	86°F30°C	60°F16°C	0 in0 mm· —	10%	Clear	SW 7 mph11 km/h
DayMostly clear and warm, with a high of 86°F30°C and morning low of 64°F18°C. Breezy from the WSW at 7 to 10 mph11 to 16 km/h. NightMostly clear, with a low around 60°F16°C. Breezy from the SW at 7 to 8 mph10 to 13 km/h.
	MondayAug 3	84°F29°C	60°F15°C	0 in0 mm· —	15%	Clear	SW 7 mph12 km/h
DayMostly clear and warm, with a high of 84°F29°C and morning low of 65°F18°C. Breezy from the WSW at 8 to 10 mph13 to 17 km/h. NightMostly clear, with a low around 60°F15°C. Breezy from the SW at 7 to 9 mph11 to 14 km/h.
	TuesdayAug 4	80°F27°C	59°F15°C	0 in0 mm· —	26%	Clear	SW 8 mph13 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 62°F17°C. Breezy from the WSW at 9 to 11 mph14 to 17 km/h. NightPartly cloudy, with a low around 59°F15°C. Breezy from the SW at 8 to 9 mph12 to 15 km/h.
	WednesdayAug 5	80°F27°C	59°F15°C	0 in0 mm· —	29%	Clear	WSW 8 mph12 km/h
DayMostly clear and warm, with a high of 80°F27°C and morning low of 62°F17°C. Breezy from the WSW at 8 to 10 mph13 to 16 km/h. NightPartly cloudy, with a low around 59°F15°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h.
	ThursdayAug 6	79°F26°C	59°F15°C	0 in0 mm· —	32%	Clear	WSW 8 mph12 km/h
DayPartly cloudy and warm, with a high of 79°F26°C and morning low of 61°F16°C. Breezy from the WSW at 8 to 10 mph13 to 17 km/h. NightPartly cloudy, with a low around 59°F15°C. Breezy from the SW at 7 to 9 mph12 to 14 km/h.

Nearby Cities

Pleasant Hill3 mi5 km Lafayette3 mi5 km Concord5 mi9 km Moraga6 mi10 km Orinda7 mi11 km Danville7 mi11 km

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

Pattern	Example	Description
/weather/{country}/{city}/	/weather/united-states/san-francisco/	City forecast (canonical URL)
/weather/{city}/	/weather/tokyo/	Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}/	/weather/united-states/california/san-francisco/	With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}	/weather/nearby?lat=48.1&lon=11.5	Find nearest city by coordinates
/weather/{country}/	/weather/germany/	Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 37.9063°N, 122.0650°W·Elevation: 52m·Timezone: America/Los_Angeles·Population: 68,910