Cities / United States / California

21°

☁️ Fullerton weather

Overcast. .

Feels like 23° Wind 5 km/h S Humidity 81% Pressure 1012 hPa UV 1 Air Fair ☀ 06:12 - 19:40

Right now it is 21° in Fullerton with overcast skies and today's high is 28° with an overnight low of 20°. The sun rises at 06:12 and sets at 19:40, giving 13h 28m of daylight. Over the coming week highs range from 28° to 35°.

Fullerton is in California, United States, sitting 50 m above sea level, with a population of about 141,000. Local time is America/Los_Angeles (UTC−7), and every time on this page is shown in it.

Next 24 hours - temperature

20° 24° 28° 28° 20° 01:00 · 20.8° · 0 mm 02:00 · 20.8° · 0 mm 03:00 · 20.7° · 0 mm 04:00 · 20.7° · 0 mm 05:00 · 20.4° · 0 mm 06:00 · 20.5° · 0 mm 07:00 · 20.8° · 0 mm 08:00 · 21.4° · 0 mm 09:00 · 22.5° · 0 mm 10:00 · 24.4° · 0 mm 11:00 · 26.1° · 0 mm 12:00 · 27.2° · 0 mm 13:00 · 27.8° · 0 mm 14:00 · 27.5° · 0 mm 15:00 · 26.3° · 0 mm 16:00 · 25.4° · 0 mm 17:00 · 24.9° · 0 mm 18:00 · 23.9° · 0 mm 19:00 · 22.4° · 0 mm 20:00 · 21.1° · 0 mm 21:00 · 20.5° · 0 mm 22:00 · 20.4° · 0 mm 23:00 · 20.5° · 0 mm 00:00 · 20.6° · 0 mm

Precipitation

01:00 · 0 mm 01:00 02:00 · 0 mm 03:00 · 0 mm 04:00 · 0 mm 04:00 05:00 · 0 mm 06:00 · 0 mm 07:00 · 0 mm 07:00 08:00 · 0 mm 09:00 · 0 mm 10:00 · 0 mm 10:00 11:00 · 0 mm 12:00 · 0 mm 13:00 · 0 mm 13:00 14:00 · 0 mm 15:00 · 0 mm 16:00 · 0 mm 16:00 17:00 · 0 mm 18:00 · 0 mm 19:00 · 0 mm 19:00 20:00 · 0 mm 21:00 · 0 mm 22:00 · 0 mm 22:00 23:00 · 0 mm 00:00 · 0 mm

Hour by hour

TIMETEMPFEELSRAINCONDITIONS
01:00 ☁️ 20.8° 22.3° - Overcast
02:00 ⛅ 20.8° 22.7° - Partly cloudy
03:00 ☁️ 20.7° 22.6° - Overcast
04:00 ☁️ 20.7° 22.7° - Overcast
05:00 ☁️ 20.4° 22.2° - Overcast
06:00 ☁️ 20.5° 22.5° - Overcast
07:00 ☁️ 20.8° 22.9° - Overcast
08:00 ☁️ 21.4° 23.4° - Overcast
09:00 ☁️ 22.5° 24.6° - Overcast
10:00 ☁️ 24.4° 26.1° - Overcast
11:00 ☁️ 26.1° 27.1° - Overcast
12:00 ☁️ 27.2° 27.7° - Overcast

Next 16 days

Today☁️ 28°20° Fri 14☀️ 28°20° Sat 15☁️ 29°20° Sun 16☀️ 32°22° Mon 17☀️ 34°23° Tue 18☀️ 35°25° Wed 19☀️ 34°24° Thu 20☀️ 32°23° Fri 21☀️ 32°22° Sat 22☀️ 35°23° Sun 23☀️ 37°24° Mon 24☀️ 35°25° Tue 25☀️ 34°25° Wed 26☀️ 33°24°0.6mm Thu 27☀️ 33°24° Fri 28☀️ 0°0°
☁️ TodayAugust 13th Avg 23° Low 20° at 05:00 High 28° at 13:00 Wind ~16 km/h
Cloudy
00:00 21°
02:00 21°
04:00 21°
06:00 21°
08:00 21°
10:00 24°
12:00 27°
14:00 28°
16:00 25°
18:00 24°
20:00 21°
22:00 20°
☀️ FridayAugust 14th Avg 23° Low 20° at 06:00 High 28° at 14:00 Wind ~17 km/h
Cloudy Clear
00:00 21°
02:00 21°
04:00 20°
06:00 20°
08:00 21°
10:00 22°
12:00 27°
14:00 28°
16:00 27°
18:00 24°
20:00 22°
22:00 21°
☁️ SaturdayAugust 15th Avg 24° Low 20° at 06:00 High 29° at 14:00 Feels 27° Wind ~17 km/h
Clear Cloudy Cloudy
00:00 21°
02:00 21°
04:00 20°
06:00 20°
08:00 21°
10:00 24°
12:00 28°
14:00 29°
16:00 29°
18:00 27°
20:00 25°
22:00 23°
☀️ SundayAugust 16th Avg 27° Low 22° at 04:00 High 32° at 16:00 Feels 29° Wind ~17 km/h
Cloudy Clear Clear
00:00 23°
02:00 23°
04:00 22°
06:00 22°
08:00 23°
10:00 27°
12:00 30°
14:00 31°
16:00 32°
18:00 31°
20:00 28°
22:00 26°
☀️ MondayAugust 17th Avg 28° Low 23° at 06:00 High 34° at 16:00 Feels 32° Wind ~15 km/h
Clear Clear
00:00 25°
02:00 24°
04:00 23°
06:00 23°
08:00 24°
10:00 28°
12:00 31°
14:00 33°
16:00 34°
18:00 33°
20:00 29°
22:00 27°
☀️ TuesdayAugust 18th Avg 29° Low 25° at 03:00 High 35° at 14:00 Feels 33° Wind ~17 km/h
Clear
00:00 26°
02:00 25°
04:00 25°
06:00 25°
08:00 27°
10:00 30°
12:00 33°
14:00 35°
16:00 33°
18:00 31°
20:00 29°
22:00 27°
☀️ WednesdayAugust 19th Avg 28° Low 24° at 05:00 High 34° at 14:00 Feels 31° Wind ~17 km/h
Clear
00:00 26°
02:00 25°
04:00 24°
06:00 24°
08:00 25°
10:00 29°
12:00 32°
14:00 34°
16:00 32°
18:00 30°
20:00 27°
22:00 26°
☀️ ThursdayAugust 20th Avg 27° Low 23° at 06:00 High 32° at 14:00 Feels 30° Wind ~19 km/h
Clear Cloudy
00:00 25°
02:00 24°
04:00 23°
06:00 23°
08:00 24°
10:00 28°
12:00 31°
14:00 32°
16:00 31°
18:00 29°
20:00 26°
22:00 25°
☀️ FridayAugust 21st Avg 26° Low 22° at 06:00 High 32° at 14:00 Feels 30° Wind ~17 km/h
Cloudy Partly Cloudy Clear
00:00 24°
02:00 23°
04:00 23°
06:00 22°
08:00 23°
10:00 27°
12:00 30°
14:00 32°
16:00 31°
18:00 29°
20:00 26°
22:00 25°
☀️ SaturdayAugust 22nd Avg 28° Low 23° at 04:00 High 35° at 15:00 Feels 32° Wind ~16 km/h
Clear Partly Cloudy Clear
00:00 24°
02:00 24°
04:00 23°
06:00 23°
08:00 24°
10:00 28°
12:00 32°
14:00 34°
16:00 35°
18:00 32°
20:00 29°
22:00 26°
☀️ SundayAugust 23rd Avg 29° Low 24° at 03:00 High 37° at 15:00 Feels 34° Wind ~17 km/h
Clear Partly Cloudy Clear
00:00 25°
02:00 24°
04:00 24°
06:00 24°
08:00 25°
10:00 29°
12:00 33°
14:00 37°
16:00 36°
18:00 34°
20:00 30°
22:00 27°
☀️ MondayAugust 24th Avg 29° Low 25° at 04:00 High 35° at 15:00 Wind ~14 km/h
Cloudy Clear Partly Cloudy Clear
00:00 26°
02:00 25°
04:00 25°
06:00 25°
08:00 26°
10:00 29°
12:00 33°
14:00 35°
16:00 35°
18:00 32°
20:00 28°
22:00 27°
☀️ TuesdayAugust 25th Avg 28° Low 25° at 04:00 High 34° at 14:00 Feels 32° Wind ~17 km/h
Partly Cloudy Clear
00:00 26°
02:00 25°
04:00 25°
06:00 25°
08:00 26°
10:00 29°
12:00 32°
14:00 34°
16:00 32°
18:00 29°
20:00 27°
22:00 26°
☀️ WednesdayAugust 26th Avg 28° Low 24° at 04:00 High 33° at 14:00 0.6 mm rain Wind ~15 km/h
Rain Clear
00:00 25° 0.1mm
02:00 25° 0.1mm
04:00 24° 0.1mm
06:00 24°
08:00 25°
10:00 29°
12:00 32°
14:00 33°
16:00 32°
18:00 30°
20:00 28°
22:00 26°
☀️ ThursdayAugust 27th Avg 28° Low 24° at 05:00 High 33° at 14:00 Wind ~17 km/h
Clear
00:00 25°
02:00 25°
04:00 24°
06:00 24°
08:00 25°
10:00 29°
12:00 32°
14:00 33°
16:00 33°
18:00 31°
20:00 27°
22:00 27°
☀️ FridayAugust 28th Avg 29° Low 0° at 06:00 High 0° at 14:00 Feels 34° Wind ~18 km/h
Clear Unknown
00:00 27°
02:00 26°
04:00 25°
06:00 25°
08:00 26°
10:00 30°
12:00 34°
14:00 35°
16:00 33°
18:00 0°
20:00 0°
22:00 0°

Sun

☀️ Sunrise 06:12 · Sunset 19:40

13h 28m of daylight · America/Los_Angeles

Air quality

PM2.5 15.5 µg/m³ - Fair

Fine for almost everyone; unusually sensitive people may notice it on a long run.

Source: Copernicus CAMS, updated hourly.

Nearby

Rancho La Paz · 1.5 km Rancho Fullerton Mobile Home Estates · 2 km Anaheim Shores · 2.9 km Tree Mobile Home Park · 3.6 km Sunny Hills · 3.6 km Santa Ysabel (historical) · 3.6 km

Tools for Fullerton

☔ Will it rain today? 🌅 Sunrise & sunset 🫁 Air quality 📼 Weather on this day

Common questions about Fullerton weather

Will it rain in Fullerton today?

No rain is in the forecast for Fullerton today.

What is the temperature in Fullerton right now?

It is 21° in Fullerton right now, though it feels closer to 23°. Today runs between a low of 20° and a high of 28°.

What time is sunrise and sunset in Fullerton?

The sun rises at 06:12 and sets at 19:40 local time in Fullerton today, giving 13h 28m of daylight.

What is the air quality in Fullerton?

PM2.5 in Fullerton is currently 15.5 µg/m³, which counts as Fair on the European air-quality index. Fine for almost everyone; unusually sensitive people may notice it on a long run.

How accurate is the Fullerton forecast, and how far ahead does it go?

This page shows 16 days ahead, refreshed every hour. It blends ECMWF, NOAA GFS and whichever national high-resolution model covers Fullerton best. The first three days are the dependable part - day one is usually within a degree or two - and accuracy falls off steadily after day five, so read the far end as a trend rather than a plan. We publish our measured error against real station observations on the accuracy page.

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