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Weather in Fullerton, United States 🇺🇸

Current Weather in Fullerton

Partly Cloudy
22°C
Feels like 20°C. Partly Cloudy.
🌬️ 12 km/h W
💧 50% Humidity
🧭 1017 hPa
👁️ 10.0 km Visibility
☀️ UV Index: 4.4
🌡️ Dew Point: 11°C
🌅 Sunrise: 06:12 AM
🌇 Sunset: 04:57 PM
Map Overlays:

In Fullerton right now it is 22°C and partly cloudy, feeling like 20°C. Humidity sits at 50% and winds are near 12 km/h, and the UV index is 4 (moderate). Over the next few days, temperatures in Fullerton range from about 15°C to 25°C.

Hourly Forecast for Fullerton

12:00
Sunny
22°
2%
13:00
Partly Cloudy
23°
5%
14:00
Overcast
22°
13%
15:00
Cloudy
22°
9%
16:00
Sunny
21°
3%
17:00
Clear
21°
3%
18:00
Clear
20°
3%
19:00
Clear
18°
6%
20:00
Clear
20°
3%
21:00
Clear
20°
3%
22:00
Clear
17°
8%
23:00
Patchy rain nearby
20°
14%
00:00
Patchy rain nearby
20°
12%
01:00
Partly Cloudy
16°
12%
02:00
Partly Cloudy
19°
8%
03:00
Partly Cloudy
19°
8%
04:00
Partly Cloudy
16°
12%
05:00
Partly Cloudy
19°
5%
06:00
Clear
19°
4%
07:00
Sunny
16°
8%
08:00
Sunny
20°
3%
09:00
Sunny
20°
3%
10:00
Sunny
20°
4%
11:00
Sunny
22°
2%

14-Day Forecast for Fullerton

Tue, Nov 03
Sunny Sunny
23° / 15°
Wed, Nov 04
Sunny Sunny
23° / 16°
Thu, Nov 05
Sunny Sunny
25° / 16°
Fri, Nov 06
Sunny Sunny
27° / 16°
Sat, Nov 07
Sunny Sunny
29° / 18°
Sun, Nov 08
Sunny Sunny
30° / 19°
Mon, Nov 09
Partly Cloudy Partly Cloudy
26° / 19°
Tue, Nov 10
Sunny Sunny
26° / 19°
Wed, Nov 11
Sunny Sunny
26° / 18°
Thu, Nov 12
Partly Cloudy Partly Cloudy
24° / 18°
Fri, Nov 13
Patchy rain nearby Patchy rain nearby
22° / 17°
Sat, Nov 14
Light drizzle Light drizzle
20° / 17°
Sun, Nov 15
Patchy rain nearby Patchy rain nearby
20° / 16°
Mon, Nov 16
Patchy rain nearby Patchy rain nearby
19° / 16°

Additional Forecasts for Fullerton

Air Quality

💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 169.0 μg/m³
O₃ (Ozone) 79.0 μg/m³
NO₂ (Nitrogen Dioxide) 22.3 μg/m³
SO₂ (Sulphur Dioxide) 7.7 μg/m³
PM2.5 (Fine particles) 16.9 μg/m³
PM10 (Coarse particles) 19.0 μg/m³

Historical Weather

Weather Forecasts for Other Cities in United States

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Weather in United States ›

Best Time to Be Outside in Fullerton Today

The most comfortable window in Fullerton today looks like 14:00 to 17:00, when it is around 22°C. It should stay dry through that window. No significant rain is expected in the next several hours.

Frequently Asked Questions about Weather in Fullerton

What is the temperature in Fullerton right now?

It is currently 22°C (72°F) in Fullerton, partly cloudy (feels like 20°C).

What's the weather like in Fullerton right now?

Conditions in Fullerton right now: Partly Cloudy, humidity 50%, wind 12 km/h W.

What is today's forecast for Fullerton?

Today in Fullerton: high 23°C, low 15°C, sunny. Chance of rain: 7%.

What is the 7-day weather forecast for Fullerton?

Daily highs and lows for Fullerton:

  • 2026-11-03: 23°C / 15°C
  • 2026-11-04: 23°C / 16°C
  • 2026-11-05: 25°C / 16°C
  • 2026-11-06: 27°C / 16°C
  • 2026-11-07: 29°C / 18°C
  • 2026-11-08: 30°C / 19°C
  • 2026-11-09: 26°C / 19°C
Is it going to rain in Fullerton today?

There is a 7% chance of rain in Fullerton today. Total expected precipitation: 0.02 mm.

What is the wind speed in Fullerton right now?

Wind in Fullerton is currently 12 km/h (8 mph) from the W.

What is the UV index in Fullerton right now?

The UV index in Fullerton is currently 4.4 (moderate). Sun protection is recommended when the index is 3 or higher.

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