Walnut Creek, California Weather Forecast

Contra Costa County 37.90°N, 122.04°W Pop. 70,166

Today in Walnut Creek: clear skies with a high near 94°F and a low around 58°F. Rain chance 0%. Rain chances peak at 24% on Tuesday. Cooling trend: highs fall from 94°F today to 65°F by Monday.

Forecast updated 7:05 PM PDT, Oct 16

Active Weather Alerts

7-Day Forecast for Walnut Creek

Today 10/16
Clear sky
94°58°
Sat 10/17
Clear sky
91°59°
Sun 10/18
Clear sky
76°53°
Mon 10/19
Mostly sunny
65°50°
Tue 10/20
Slight rain showers
24%
67°49°
Wed 10/21
Slight rain showers
24%
70°50°
Thu 10/22
Mostly sunny
12%
68°52°
Hourly charts, 15-day outlook and more for Walnut Creek in Local Wx →

Next 24 Hours

Now9 PM10 PM11 PMSat12 AM1 AM2 AM3 AM4 AM5 AM6 AM7 AM8 AM9 AM10 AM11 AM12 PM1 PM2 PM3 PM4 PM5 PM6 PM7 PM
SkyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear skyClear sky
Temp79°75°72°70°68°66°65°64°63°62°61°59°60°66°72°77°82°86°89°91°91°91°87°80°
Rain0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%0%
WindSW 0SE 0S 0S 0S 0S 0S 0S 0S 0S 0SSE 0E 2ENE 2ENE 3N 3N 5N 4N 4NNW 4NW 4W 5W 5WSW 3SSW 2

Growing Conditions

Growing degree days
3,374
since Apr 1, base 50°F
Rain, last 30 days
0.00 in
model analysis
Rain, year to date
11.86 in
since Jan 1
2-inch soil temperature
65°F
yesterday, daily average
Reference ET, last 7 days
1.04 in
FAO-56 grass reference
Through Oct 15. Season totals use model analysis for this point and update every morning. Soil, ET and spray tools for Walnut Creek →

Current Stats & Observations

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NWS Forecast

About Walnut Creek Weather

Walnut Creek sits at about 213 feet above sea level in Contra Costa County, California. About 70,166 people live in the Walnut Creek area. Official forecasts and warnings for the area come from the National Weather Service MTR office, and the nearest NEXRAD radar site is KDAX. The city is in USDA plant hardiness zone 9b, where the coldest winter night typically falls between 25 to 30°F. Freezing temperatures are rare here.