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City of Fullerton, CAFullerton, CA 7-Day Night Weather Forecast
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Fullerton, CA Weather Forecast
Fullerton, CA Weather Forecast Date: 1213 AM PDT Tue Sep 29 2026
The area/counties/county of: Orange County Inland Areas, including the cities of: Santa Ana, Anaheim, Garden Grove, Irvine, Orange, Fullerton, and Mission Viejo.or toggle through each period.
Today... Sunny. Highs 85 to 88. Light winds becoming west 10 to 15 mph with gusts to 25 mph this afternoon.
Tonight... Clear in the evening...Becoming partly cloudy. Lows 61 to 67. Areas of winds southeast 10 mph.
Wednesday... Partly cloudy in the morning...Becoming sunny. Highs 82 to 87. Areas of winds south 10 mph.
Wednesday Night... Mostly clear. Lows 60 to 66. Light winds.
Thursday... Partly cloudy with patchy fog in the morning... Becoming sunny. Highs 84 to 87 towards the coast to 89 farther inland. Light winds becoming west to 10 mph in the afternoon.
Thursday Night... Mostly clear. Lows 64 to 68.
Friday... Partly cloudy with patchy fog in the morning...Becoming mostly sunny. Highs 89 to 92 towards the coast to 95 farther inland.
Friday Night... Mostly clear. Lows 67 to 71.
Saturday... Mostly sunny. Highs around 94 towards the coast to 98 farther inland.
Saturday Night... Clear. Lows 70 to 74.
Sunday... Mostly sunny. Highs 96 to 99.
Sunday Night... Clear. Lows 71 to 75.
POP = Probability of Precipitation
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