Fontana, CA Weather Forecast & Alerts

Current conditions, 5-day forecast, and active NWS weather alerts for Fontana, CA.

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Current Conditions — Fontana, CA

LA VERNE/BRACKET (KPOC)

Clear

64.4 F
Humidity:49%
Wind Speed:SW 6.9 mph
Barometer:29.94 in
Dewpoint:44.6 F
Visibility:10.00 mi
Precip:--
Heat Index:NA
Wind Chill:NA
Apr 23 2026, 08:47 PM PDT
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5-Day Forecast — Fontana, CA

Friday

High 77 °F
Forecast Missing
Friday
Night
Low 55 °F
Forecast Missing
Saturday

High 68 °F
Forecast Missing
Saturday
Night
Low 51 °F
Forecast Missing
Sunday

High 68 °F
Forecast Missing
Sunday
Night
Low 50 °F
Forecast Missing
Monday

High 73 °F
Forecast Missing
Monday
Night
Low 50 °F
Forecast Missing
Tuesday

High 77 °F
Forecast Missing

Detailed Forecast — Fontana, CA

Friday
Forecast Missing. High near 77°F. Wind 2 to 17 mph, with gusts as high as 28 mph.
Friday Night
Forecast Missing. Low around 55°F. Wind 6 to 16 mph, with gusts as high as 25 mph.
Saturday
Forecast Missing. High near 68°F. Wind 9 to 20 mph, with gusts as high as 30 mph.
Saturday Night
Forecast Missing. Low around 51°F. Wind 10 to 17 mph, with gusts as high as 28 mph.
Sunday
Forecast Missing. High near 68°F. Wind 9 to 18 mph, with gusts as high as 31 mph.
Sunday Night
Forecast Missing. Low around 50°F. Wind 2 to 9 mph, with gusts as high as 23 mph.
Monday
Forecast Missing. High near 73°F. Wind 7 to 14 mph, with gusts as high as 28 mph.
Monday Night
Forecast Missing. Low around 50°F. Wind 2 to 6 mph, with gusts as high as 17 mph.
Tuesday
Forecast Missing. High near 77°F. Wind 7 to 15 mph, with gusts as high as 30 mph.
Tuesday Night
Forecast Missing. Low around 53°F. Wind 5 to 9 mph, with gusts as high as 22 mph.
Wednesday
Forecast Missing. High near 75°F. Wind 9 to 14 mph, with gusts as high as 29 mph.
Wednesday Night
Forecast Missing. Low around 55°F. Wind 2 to 6 mph, with gusts as high as 17 mph.
Thursday
Forecast Missing. High near 77°F. Wind 7 to 14 mph, with gusts as high as 28 mph.
CA Radar
Current Radar • CA
Day 1 Outlook • April 24, 2026

Observation History — Fontana, CA

Time Wind
(mph)		 Vis
(mi)		 Weather Precip (in) Temperature (F) Relative
Humidity		 Wind
Chill
(F)		 Heat
Index
(F)		 Pressure
Air Dwpt altimeter
(in)		 sea level
(mb)
08:47 PM PDT SW 6.9 10.00 Clear -- 64.4 44.6 49% NA NA 29.94 1013.6
07:47 PM PDT 9.2 10.00 Clear -- 64.4 42.8 45% NA NA 29.91 1012.9
06:47 PM PDT W 11.4 10.00 Clear -- 69.8 46.4 43% NA NA 29.91 1012.9
05:47 PM PDT W 13.9 10.00 Clear -- 71.6 48.2 43% NA 70.5 29.90 1012.5
04:47 PM PDT 15.0 G 21.9 10.00 Clear -- 75.2 46.4 36% NA 74.1 29.90 1012.5
03:47 PM PDT 9.2 10.00 Clear -- 75.2 42.8 31% NA 73.9 29.91 1012.9
02:47 PM PDT 12.8 G 18.3 10.00 Clear -- 73.4 44.6 36% NA 72.1 29.94 1013.6
01:47 PM PDT W 6.9 10.00 Clear -- 71.6 46.4 41% NA 70.3 29.96 1014.6
12:47 PM PDT 9.2 10.00 Clear -- 69.8 44.6 40% NA NA 29.98 1015.2
11:47 AM PDT W 10.3 10.00 Clear -- 66.2 42.8 43% NA NA 30.00 1015.9
10:47 AM PDT W 5.8 10.00 Clear -- 64.4 46.4 52% NA NA 30.01 1016.3
09:47 AM PDT 0.0 10.00 Clear -- 60.8 48.2 63% NA NA 30.03 1016.9
08:47 AM PDT 0.0 10.00 Clear -- 60.8 48.2 63% NA NA 30.03 1016.9
07:47 AM PDT 0.0 10.00 Clear -- 57.2 46.4 67% NA NA 30.04 1017.3
06:47 AM PDT 0.0 10.00 Clear -- 51.8 42.8 71% NA NA 30.04 1017.3

Regional Weather Observation

LA VERNE/BRACKET (KPOC)

Clear
64.4 F

UPLAND (KCCB)

Clear
62.6 F

ONTARIO (KONT)

Clear
62.6 F

SAN BERNARDINO (KSBD)

Clear
63.5 F

(KGXA)


F

VICTORVILLE (KVCV)

Clear
59.0 F
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