ONTARIO, CA 91758 Weather Forecast & Current Conditions

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91758 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ONTARIO, CA Current Weather
5:53 PM PDT MAY 31, 2026
Clear 82°F
Feels Like:	81°F
Dewpoint:	54°F
Rel. Hum.:	38%
Visibility:	10 miles
Wind:	WSW at 12 mph, gusts to 21
Pressure:	29.85 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 2025 Hurricanes	ONTARIO, CA 91758 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly clear. Lows 54 to 59. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light.

MONDAY
Mostly sunny. Highs 83 to 89. Areas of winds southwest to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

MONDAY NIGHT
Mostly clear. Lows 52 to 57. Areas of winds southwest 10 to 15 mph with gusts to 25 mph in the evening becoming light.

TUESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 87. Light winds becoming west 10 to 15 mph in the afternoon.

TUESDAY NIGHT
Mostly clear. Lows 52 to 58. Areas of winds west 10 to 15 mph in the evening becoming light.

WEDNESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 83 to 91.

WEDNESDAY NIGHT
Clear. Lows 54 to 59.

THURSDAY
Mostly sunny. Highs 83 to 91.

THURSDAY NIGHT
Mostly clear. Lows 54 to 58.

FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 81 to 89.

FRIDAY NIGHT
Mostly clear. Lows 52 to 57.

SATURDAY
Partly cloudy. Highs 80 to 86.

SATURDAY NIGHT
Mostly clear. Lows 52 to 57.

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 5/31/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Sunday
31 MAY 2026

11 AM

77°

78°

Clear

0%

0% Thunder
( 0% severe)

WSW 6

39%

50°

High 85°

2 PM

84°

82°

Clear

WSW 12

29%

48°

Clear

5 PM

84°

82°

Clear

0%

0% Thunder
( 0% severe)

WSW 13

30%

49°

8 PM

75°

75°

Clear

WSW 9

43%

51°

Monday
1 JUN 2026

11 PM

68°

68°

Clear

0%

0% Thunder
( 0% severe)

W 6

54%

51°

Low 61°

2 AM

64°

65°

Clear

W 3

65%

52°

High 87°

5 AM

62°

63°

Clear

0%

0% Thunder
( 0% severe)

CALM

70%

52°

Partly Cloudy

8 AM

65°

65°

Partly Cloudy

CALM

65%

53°

11 AM

76°

78°

Partly Cloudy

0%

0% Thunder
( 0% severe)

SW 7

43%

52°

2 PM

83°

81°

Clear

WSW 12

31%

49°

5 PM

82°

81°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 13

31%

48°

8 PM

73°

73°

Clear

WSW 12

44%

50°

Tuesday
2 JUN 2026

11 PM

66°

66°

Clear

0%

0% Thunder
( 0% severe)

WSW 8

65%

54°

Low 59°

2 AM

63°

64°

Clear

WSW 5

70%

53°

High 85°

5 AM

60°

61°

Partly Cloudy

0%

0% Thunder
( 0% severe)

CALM

78%

53°

Partly Cloudy

8 AM

63°

64°

Partly Cloudy

CALM

72%

54°

11 AM

74°

74°

Partly Cloudy

0%

0% Thunder
( 0% severe)

SW 8

48%

53°

2 PM

81°

80°

Clear

WSW 12

34%

50°

5 PM

81°

80°

Clear

WSW 13

35%

51°


ONTARIO, CA extended weather forecast
Wednesday 3 JUN 2026	Thursday 4 JUN 2026	Friday 5 JUN 2026	Saturday 6 JUN 2026	Sunday 7 JUN 2026
Low 59°	Low 62°	Low 63°	Low 61°	Low 61°
High 88°	High 83°	High 84°	High 83°	High 83°

Partly Cloudy 1% Rain	Partly Cloudy 1% Rain	Mostly Cloudy 1% Rain	Partly Cloudy 4% Rain	Partly Cloudy 11% Rain

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