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 PM PDT SEP 21, 2026
Few Clouds 79°F
Feels Like:	80°F
Dewpoint:	55°F
Rel. Hum.:	44%
Visibility:	10 miles
Wind:	W at 9 mph
Pressure:	29.91 inches
Last 72 hours
Local Area Snow Depth
California Current Weather
California MOS Forecast Weather

Regional Weather Maps

(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

TONIGHT
Partly cloudy. Patchy fog overnight. Cooler. Lows 52 to 60. Areas of winds west 10 to 15 mph this evening becoming light.

TUESDAY
Partly cloudy with patchy fog in the morning... Becoming sunny. Highs 83 to 88. Light winds becoming west 10 to 15 mph in the afternoon.

TUESDAY NIGHT
Mostly clear. Lows 59 to 65. Areas of winds west to 10 mph in the evening becoming light.

WEDNESDAY
Mostly sunny. Warmer. Highs 91 to 97. Areas of winds east to 10 mph becoming west in the afternoon.

WEDNESDAY NIGHT
Mostly clear. Lows 63 to 68. Areas of winds west to 10 mph in the evening becoming light.

THURSDAY
Mostly sunny. A slight chance of rain in the afternoon. Highs 91 to 97.

THURSDAY NIGHT
Clear. Lows 63 to 69.

FRIDAY
Mostly sunny. Highs 90 to 95.

FRIDAY NIGHT
Mostly clear. Lows 63 to 68.

SATURDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 89 to 94.

SATURDAY NIGHT
Mostly clear. Lows 61 to 66.

SUNDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 84 to 89.

SUNDAY NIGHT
Mostly clear. Lows 57 to 63.

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 AM PDT 9/21/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Monday
21 SEP 2026

11 AM

68°

68°

Partly Cloudy

0%

0% Thunder
( 1% severe)

CALM

76%

60°

High 78°

2 PM

77°

79°

Clear

SW 6

47%

55°

Partly Cloudy

5 PM

77°

79°

Clear

0%

0% Thunder
( 1% severe)

WSW 13

50%

57°

8 PM

69°

69°

Partly Cloudy

WSW 9

68%

58°

Tuesday
22 SEP 2026

11 PM

65°

65°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 6

81%

59°

Low 62°

2 AM

64°

64°

Partly Cloudy

W 6

87%

60°

High 85°

5 AM

63°

64°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

CALM

90%

60°

Decreasing Clouds

8 AM

64°

66°

Mostly Cloudy

CALM

90%

61°

11 AM

71°

71°

Clear

1%

0% Thunder
( 0% severe)

CALM

68%

60°

2 PM

81°

81°

Clear

WSW 7

44%

57°

5 PM

82°

82°

Clear

0%

0% Thunder
( 0% severe)

WSW 10

46%

59°

8 PM

74°

74°

Clear

CALM

59%

59°

Wednesday
23 SEP 2026

11 PM

70°

70°

Clear

0%

0% Thunder
( 0% severe)

CALM

63%

57°

Low 66°

2 AM

68°

68°

Clear

WNW 5

68%

57°

High 95°

5 AM

66°

66°

Clear

0%

0% Thunder
( 0% severe)

NNE 5

73%

57°

Clear

8 AM

69°

69°

Clear

NNE 6

68%

58°

11 AM

82°

81°

Clear

0%

0% Thunder
( 1% severe)

CALM

38%

54°

2 PM

92°

89°

Clear

WSW 6

26%

52°

5 PM

91°

89°

Clear

WSW 12

31%

56°


ONTARIO, CA extended weather forecast
Thursday 24 SEP 2026	Friday 25 SEP 2026	Saturday 26 SEP 2026	Sunday 27 SEP 2026	Monday 28 SEP 2026
Low 64°	Low 64°	Low 67°	Low 66°	Low 66°
High 91°	High 93°	High 94°	High 96°	High 99°

Clear	Clear 2% Rain	Clear 1% Rain	Clear 4% Rain	Clear 3% Rain

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