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Fontana, CA Weather Forecast
Fontana, CA Weather Forecast Dated: 556 AM Sun Oct 04 2026
Expect a hot stretch with plenty of sunshine and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Sunday, October 4, 2026
Mid-Morning
87°F 31°C
Sunny
Mid-Afternoon
100°F 38°C
Sunny
Early-Evening
93°F 34°C
Sunny
Scorching hot near 100°F 38°C, sunny throughout the day, with steady humidity and steady pressure.
Monday, October 5, 2026
Mid-Morning
88°F 31°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
93°F 34°C
Sunny
Hot and sweltering around 99°F 37°C, sunny throughout the day, with steady humidity and steady pressure. Winds turning from the E to the SSW at 10 mph 16 km/h.
Tuesday, October 6, 2026
Mid-Morning
87°F 30°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
91°F 33°C
Sunny
Sizzling hot with 99°F 37°C, sunny throughout the day, with steady humidity and steady pressure. Winds switching from the E to the SSW at 8 mph 12 km/h.
Wednesday, October 7, 2026
Mid-Morning
87°F 30°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
91°F 33°C
Sunny
Hot temperatures near 99°F 37°C, sunny throughout the day, with steady humidity and steady pressure. Winds moving from the SE to the WSW at 7 mph 12 km/h.
Thursday, October 8, 2026
Mid-Morning
85°F 30°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
90°F 32°C
Sunny
Very hot with a high of 97°F 36°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the SSE to the WSW at 7 mph 11 km/h.
Friday, October 9, 2026
Mid-Morning
84°F 29°C
Sunny
Mid-Afternoon
95°F 35°C
Sunny
Early-Evening
88°F 32°C
Sunny
Very hot with temperatures reaching 95°F 35°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with steady humidity and steady pressure. Winds shifting from the S to the WSW at 8 mph 12 km/h.
Saturday, October 10, 2026
Mid-Morning
80°F 27°C
Partly Cloudy
Mid-Afternoon
85°F 29°C
Overcast
Early-Evening
79°F 26°C
Overcast
Balmy with temperatures reaching 85°F 29°C, overcast throughout the day, with steady humidity and steady pressure. Winds W at 11 mph 18 km/h.
Sunday, October 11, 2026
Mid-Morning
71°F 22°C
Drizzle
Mid-Afternoon
70°F 21°C
Scattered Showers
Early-Evening
69°F 20°C
Scattered Showers
Enjoyable around 70°F 21°C, scattered downpours possible, with increasing humidity and steady pressure.
Monday, October 12, 2026
Mid-Morning
63°F 17°C
Scattered Showers
Mid-Afternoon
67°F 19°C
Partly Cloudy
Early-Evening
66°F 19°C
Cloudy
Refreshing around 67°F 19°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds switching from the W to the WSW at 6 mph 10 km/h.
Tuesday, October 13, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
76°F 24°C
Sunny
Early-Evening
72°F 22°C
Sunny
Mild with a high of 76°F 24°C, sunny throughout the day, with steady humidity and steady pressure. Winds blowing from the WSW at 9 mph 14 km/h.
Wednesday, October 14, 2026
Mid-Morning
72°F 22°C
Sunny
Mid-Afternoon
87°F 31°C
Sunny
Early-Evening
81°F 28°C
Sunny
Warm and summery near 87°F 31°C, sunny throughout the day, with lower humidity and steady pressure. Winds swinging from the E to the SW at 6 mph 10 km/h.
Thursday, October 15, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
86°F 30°C
Sunny
Hot and sweltering around 91°F 33°C, sunny throughout the day, with steady humidity and steady pressure.
Friday, October 16, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
93°F 34°C
Sunny
Early-Evening
89°F 32°C
Sunny
Sizzling hot with 93°F 34°C, sunny throughout the day, with steady humidity and steady pressure.
Saturday, October 17, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
89°F 32°C
Sunny
Early-Evening
83°F 28°C
Sunny
Warm temperatures up to 89°F 32°C, sunny throughout the day, with steady humidity and steady pressure. Winds shifting from the WSW to the W at 8 mph 13 km/h.
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