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Weather in Walnut Creek, United States 🇺🇸

Current Weather in Walnut Creek

Beach Hazards Statement issued September 7 at 7:58AM PDT until September 7 at 11:00PM PDT by NWS San Francisco CA
Sunny
33°C
Feels like 31°C. Sunny.
🌬️ 9 km/h W
💧 20% Humidity
🧭 1012 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 1.8
🌡️ Dew Point: 7°C
🌅 Sunrise: 06:43 AM
🌇 Sunset: 07:29 PM
Map Overlays:

The current temperature in Walnut Creek is 33°C, sunny, feeling like 31°C. Relative humidity is 20%, with winds around 9 km/h, and the UV index is 2 (low). In the days ahead, expect temperatures in Walnut Creek from about 13°C to 37°C. ⚠️ Beach Hazards Statement issued September 7 at 7:58AM PDT until September 7 at 11:00PM PDT by NWS San Francisco CA

Hourly Forecast for Walnut Creek

18:00
Sunny
31°
0%
19:00
Sunny
27°
0%
20:00
Clear
23°
1%
21:00
Clear
21°
1%
22:00
Clear
23°
1%
23:00
Clear
22°
1%
00:00
Clear
22°
1%
01:00
Clear
21°
1%
02:00
Clear
21°
1%
03:00
Clear
21°
1%
04:00
Clear
20°
1%
05:00
Clear
20°
2%
06:00
Clear
20°
2%
07:00
Sunny
19°
2%
08:00
Sunny
20°
1%
09:00
Sunny
22°
1%
10:00
Sunny
24°
1%
11:00
Sunny
27°
0%
12:00
Overcast
29°
9%
13:00
Overcast
31°
9%
14:00
Partly Cloudy
33°
2%
15:00
Overcast
34°
9%
16:00
Overcast
34°
9%
17:00
Overcast
33°
9%

14-Day Forecast for Walnut Creek

Mon, Sep 07
Sunny Sunny
34° / 13°
Tue, Sep 08
Sunny Sunny
34° / 19°
Wed, Sep 09
Overcast Overcast
37° / 23°
Thu, Sep 10
Sunny Sunny
37° / 24°
Fri, Sep 11
Sunny Sunny
29° / 17°
Sat, Sep 12
Sunny Sunny
24° / 14°
Sun, Sep 13
Sunny Sunny
28° / 14°
Mon, Sep 14
Sunny Sunny
31° / 16°
Tue, Sep 15
Sunny Sunny
30° / 17°
Wed, Sep 16
Sunny Sunny
31° / 16°
Thu, Sep 17
Sunny Sunny
26° / 14°
Fri, Sep 18
Sunny Sunny
31° / 16°
Sat, Sep 19
Overcast Overcast
32° / 19°
Sun, Sep 20
Overcast Overcast
27° / 16°

Additional Forecasts for Walnut Creek

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 149.0 μg/m³
O₃ (Ozone) 129.0 μg/m³
NO₂ (Nitrogen Dioxide) 3.8 μg/m³
SO₂ (Sulphur Dioxide) 2.5 μg/m³
PM2.5 (Fine particles) 9.2 μg/m³
PM10 (Coarse particles) 11.4 μg/m³

Historical Weather

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Best Time to Be Outside in Walnut Creek Tomorrow

There is no good daylight window left in Walnut Creek today. Tomorrow, the most comfortable window looks like 07:00 to 10:00, when it is around 21°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Walnut Creek

What is the temperature in Walnut Creek right now?

The current temperature in Walnut Creek is 33°C (91°F), sunny (feels like 31°C).

What's the weather like in Walnut Creek right now?

Conditions in Walnut Creek right now: Sunny, humidity 20%, wind 9 km/h W.

What is today's forecast for Walnut Creek?

Today in Walnut Creek: high 34°C, low 13°C, sunny. Chance of rain: 2%.

What is the 7-day weather forecast for Walnut Creek?

Daily highs and lows for Walnut Creek:

  • 2026-09-07: 34°C / 13°C
  • 2026-09-08: 34°C / 19°C
  • 2026-09-09: 37°C / 23°C
  • 2026-09-10: 37°C / 24°C
  • 2026-09-11: 29°C / 17°C
  • 2026-09-12: 24°C / 14°C
  • 2026-09-13: 28°C / 14°C
Is it going to rain in Walnut Creek today?

There is a 2% chance of rain in Walnut Creek today.

What is the wind speed in Walnut Creek right now?

Wind in Walnut Creek is currently 9 km/h (5 mph) from the W.

What is the UV index in Walnut Creek right now?

The UV index in Walnut Creek is currently 1.8 (low). Sun protection is recommended when the index is 3 or higher.

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