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Hour-by-Hour Forecast for Fullerton, California, USA

Currently: 61 °F. Clear. (Weather station: Fullerton Municipal Airport, USA). See more current weather

Hour-by-hour Forecast in Fullerton — Graph

°F

Detailed Hourly Forecast — Next 24 hours

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  Conditions Comfort Precipitation
Time   Temp Weather Feels Like Wind   Humidity Chance Amount
8:00 am
Sat, Mar 21
62 °F Scattered clouds. 62 °F 3 mph 79% 0% 0.00" (snow)
0.00" (rain)
9:00 am 67 °F Partly cloudy. 67 °F 3 mph 68% 0% 0.00" (snow)
0.00" (rain)
10:00 am 73 °F Broken clouds. 77 °F 3 mph 56% 0% 0.00" (snow)
0.00" (rain)
11:00 am 78 °F Cloudy. 79 °F 3 mph 46% 0% 0.00" (snow)
0.00" (rain)
12:00 pm 82 °F Mostly cloudy. 81 °F 6 mph 40% 0% 0.00" (snow)
0.00" (rain)
1:00 pm 85 °F Broken clouds. 83 °F 8 mph 36% 0% 0.00" (snow)
0.00" (rain)
2:00 pm 86 °F Partly cloudy. 85 °F 10 mph 34% 0% 0.00" (snow)
0.00" (rain)
3:00 pm 87 °F Mostly cloudy. 85 °F 10 mph 33% 0% 0.00" (snow)
0.00" (rain)
4:00 pm 85 °F Cloudy. 84 °F 10 mph 35% 0% 0.00" (snow)
0.00" (rain)
5:00 pm 83 °F Overcast. 82 °F 10 mph 37% 0% 0.00" (snow)
0.00" (rain)
6:00 pm 81 °F Overcast. 81 °F 8 mph 40% 0% 0.00" (snow)
0.00" (rain)
7:00 pm 76 °F Overcast. 78 °F 7 mph 49% 0% 0.00" (snow)
0.00" (rain)
8:00 pm 74 °F Overcast. 77 °F 5 mph 53% 0% 0.00" (snow)
0.00" (rain)
9:00 pm 70 °F Cloudy. 70 °F 5 mph 64% 0% 0.00" (snow)
0.00" (rain)
10:00 pm 66 °F Cloudy. 66 °F 5 mph 73% 0% 0.00" (snow)
0.00" (rain)
11:00 pm 65 °F Mostly cloudy. 65 °F 5 mph 76% 0% 0.00" (snow)
0.00" (rain)
12:00 am
Sun, Mar 22
64 °F Cloudy. 64 °F 5 mph 79% 0% 0.00" (snow)
0.00" (rain)
1:00 am 63 °F Cloudy. 63 °F 4 mph 82% 0% 0.00" (snow)
0.00" (rain)
2:00 am 61 °F Overcast. 61 °F 4 mph 84% 0% 0.00" (snow)
0.00" (rain)
3:00 am 61 °F Overcast. 61 °F 3 mph 86% 0% 0.00" (snow)
0.00" (rain)
4:00 am 60 °F Overcast. 60 °F 3 mph 86% 0% 0.00" (snow)
0.00" (rain)
5:00 am 60 °F Overcast. 60 °F 2 mph 86% 0% 0.00" (snow)
0.00" (rain)
6:00 am 60 °F Overcast. 60 °F 2 mph 86% 0% 0.00" (snow)
0.00" (rain)
7:00 am 60 °F Overcast. 60 °F 2 mph 86% 0% 0.00" (snow)
0.00" (rain)
* Updated Saturday, March 21, 2026 6:42:39 am Fullerton time - Weather by CustomWeather, © 2026

14 days extended forecast