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Hazardous Weather Conditions

No active alerts for ONTARIO, CALIFORNIA

Current Conditions: ONTARIO, CALIFORNIA

Clear


84.2 F

Last Updated on Feb 28 2026, 03:47 PM PST
Humidity: 27%
Wind Speed: 8.1 mph
Barometer: 29.90 in
Dewpoint: 46.4 F
Visibility: 10.00 mi
Precip: --
Heat Index: 81.9 F
Wind Chill: NA
Current conditions at:

LA VERNE/BRACKET (KPOC)

Lat: 34.1 Lon: -117.76

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5 Day Forecast for ONTARIO, CALIFORNIA (91761)

Sunday

Mostly Clear

High 84 °F
Sunday
Night
Partly Cloudy

Low 55 °F
Monday

Mostly Sunny

High 73 °F
Monday
Night
Mostly Clear

Low 50 °F
Tuesday

Mostly Sunny

High 77 °F
Tuesday
Night
Clear

Low 53 °F
Wednesday

Mostly Sunny

High 78 °F
Wednesday
Night
Mostly Clear

Low 50 °F
Thursday

Sunny

High 77 °F



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Observation History for ONTARIO, CALIFORNIA


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)
03:47 PM PST 8.1 10.00 Clear -- 84.2 46.4 27% NA 81.9 29.90 1012.5
02:47 PM PST 6.9 10.00 Clear -- 84.2 50.0 31% NA 82.2 29.91 1012.9
01:47 PM PST SW 9.2 10.00 Clear -- 86.0 53.6 33% NA 84.2 29.92 1013.2
12:47 PM PST SW 9.2 10.00 Clear -- 86.0 53.6 33% NA 84.2 29.94 1013.9
09:47 AM PST 5.8 10.00 Clear -- 78.8 48.2 34% NA 77.9 29.97 1014.9
08:47 AM PST 5.8 10.00 Clear -- 71.6 46.4 41% NA 70.3 29.96 1014.6
07:47 AM PST 0.0 10.00 Clear -- 66.2 48.2 52% NA NA 29.96 1014.6
06:47 AM PST 0.0 10.00 Clear -- 60.8 46.4 59% NA NA 29.94 1013.9

Regional Weather Observation

LA VERNE/BRACKET (KPOC)

Clear
84.2 F

UPLAND (KCCB)

Clear
69.8 F

ONTARIO (KONT)

Clear
66.2 F

EL MONTE (KEMT)

Clear
87.8 F

(KGXA)


F

SAN BERNARDINO (KSBD)

Clear
62.2 F

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