ONTARIO, CA 91758 Weather Forecast & Current Conditions

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91758 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ONTARIO, CA Current Weather
1:53 AM PDT AUG 31, 2026
Few Clouds 72°F
Feels Like:	72°F
Dewpoint:	64°F
Rel. Hum.:	76%
Visibility:	10 miles
Wind:	W at 5 mph
Pressure:	29.90 inches
Last 72 hours
Local Area Snow Depth
California Current Weather
California MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

91758 WEATHER FORECAST
10-Day model forecast maps 2026 Hurricanes	ONTARIO, CA 91758 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Mostly sunny. Highs 89 to 94. Areas of winds south to 10 mph becoming southwest with gusts to 25 mph this afternoon.

TONIGHT
Mostly clear. Lows 58 to 63. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

TUESDAY
Mostly sunny. Highs 86 to 92. Areas of winds west to 10 mph becoming southwest with gusts to 25 mph in the afternoon.

TUESDAY NIGHT
Mostly clear. Lows 57 to 62. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

WEDNESDAY
Mostly sunny. Highs 86 to 91. Light winds becoming southwest 10 to 15 mph with gusts to 25 mph in the afternoon.

WEDNESDAY NIGHT
Clear. Lows 57 to 62.

THURSDAY
Mostly sunny. Highs 86 to 92.

THURSDAY NIGHT
Mostly clear. Lows 55 to 61.

FRIDAY
Mostly sunny. Highs 88 to 93.

FRIDAY NIGHT
Mostly clear. Lows 60 to 65.

SATURDAY
Partly cloudy. A slight chance of showers in the afternoon. Highs 88 to 93.

SATURDAY NIGHT
Partly cloudy with a slight chance of showers. Lows 65 to 69.

SUNDAY
Partly cloudy with a slight chance of showers. Highs 89 to 95.

91758 WEATHER SATELLITE LOOPS

Visible Weather Satellite
ONTARIO, CA 91758

Infrared Weather Satellite
ONTARIO, CA 91758

91758 WEATHER RADAR LOOP

NEXRAD Weather Radar
ONTARIO, CA 91758

MOS COMPUTER WEATHER FORECAST

ONTARIO, CA 3 hourly weather forecast

weather forecast created 5:00 PM PDT 8/30/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
31 AUG 2026

11 PM

75°

75°

Clear

1%

0% Thunder
( 1% severe)

W 10

69%

64°

Low 67°

2 AM

71°

71°

Clear

W 8

81%

65°

High 92°

5 AM

68°

68°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 6

90%

65°

Partly Cloudy

8 AM

70°

70°

Partly Cloudy

SW 3

81%

64°

11 AM

81°

82°

Clear

0%

0% Thunder
( 0% severe)

SSW 5

49%

60°

2 PM

88°

86°

Clear

WSW 13

29%

52°

5 PM

87°

85°

Clear

0%

0% Thunder
( 0% severe)

WSW 14

29%

51°

8 PM

77°

78°

Clear

WSW 12

42%

52°

Tuesday
1 SEP 2026

11 PM

70°

70°

Clear

0%

0% Thunder
( 0% severe)

W 10

57%

54°

Low 62°

2 AM

66°

66°

Clear

WSW 8

70%

56°

High 90°

5 AM

63°

64°

Clear

1%

0% Thunder
( 0% severe)

SSW 5

78%

56°

Clear

8 AM

66°

66°

Clear

SE 3

70%

56°

11 AM

78°

78°

Clear

2%

0% Thunder
( 0% severe)

SSW 5

36%

49°

2 PM

86°

83°

Clear

WSW 10

23%

44°

5 PM

85°

82°

Clear

1%

0% Thunder
( 0% severe)

WSW 14

26%

46°

8 PM

76°

78°

Clear

WSW 12

39%

49°


ONTARIO, CA extended weather forecast
BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE	BAD DAY BAD DATE
Low 62°	Low 62°	Low 61°	Low 63°	Low 63°
High 90°	High 90°	High 88°	High 87°	High 87°

Clear 2% Rain	Clear 8% Rain	Clear 5% Rain	Partly Cloudy 4% Rain	Clear 4% Rain

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