ONTARIO, CA 91758 Weather Forecast & Current Conditions

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91758 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ONTARIO, CA Current Weather
10:53 AM PST FEB 28, 2026
Scattered Clouds 82°F
Feels Like:	80°F
Dewpoint:	45°F
Rel. Hum.:	27%
Visibility:	10 miles
Wind:	Calm
Pressure:	29.95 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

TODAY
Partly cloudy this morning...becoming mostly sunny. Highs 85 to 90. Light winds becoming southwest 10 to 15 mph with gusts to 25 mph this afternoon.

TONIGHT
Mostly clear. Lows 52 to 55 in wind sheltered areas to 55 to 62 in warmer locations. Areas of winds east to 10 mph in the evening becoming light.

SUNDAY
Mostly sunny. Highs 81 to 85. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.

SUNDAY NIGHT
Mostly clear. Lows 48 to 53. Areas of winds west 10 to 15 mph becoming south overnight.

MONDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 70 to 75. Areas of winds south 10 to 20 mph. Gusts to 35 mph in the afternoon.

MONDAY NIGHT
Mostly clear. Lows 42 to 50.

TUESDAY
Mostly sunny. Highs 74 to 79.

TUESDAY NIGHT
Clear. Lows 45 to 52.

WEDNESDAY
Mostly sunny. Highs 74 to 79.

WEDNESDAY NIGHT
Mostly clear. Lows 46 to 51.

THURSDAY
Mostly sunny. Highs 71 to 77.

THURSDAY NIGHT
Mostly clear. Lows 43 to 51.

FRIDAY
Mostly sunny. Highs 72 to 78.

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 4:00 AM PST 2/28/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Saturday
28 FEB 2026

10 AM

77°

78°

Partly Cloudy

0%

0% Thunder
( 0% severe)

SE 1

37%

49°

High 87°

1 PM

86°

83°

Partly Cloudy

SW 6

26%

47°

Partly Cloudy

4 PM

86°

84°

Clear

0%

0% Thunder
( 0% severe)

WSW 9

28%

49°

7 PM

74°

74°

Clear

W 6

44%

51°

Sunday
1 MAR 2026

10 PM

68°

68°

Clear

0%

0% Thunder
( 0% severe)

ESE 2

59%

53°

Low 58°

1 AM

64°

66°

Clear

NE 1

63%

51°

High 84°

4 AM

62°

63°

Clear

0%

0% Thunder
( 0% severe)

CALM

65%

50°

Clear

7 AM

61°

62°

Clear

CALM

65%

49°

10 AM

73°

73°

Clear

0%

0% Thunder
( 0% severe)

SSE 1

44%

50°

1 PM

82°

81°

Partly Cloudy

WSW 8

31%

48°

4 PM

81°

80°

Clear

0%

0% Thunder
( 0% severe)

WSW 12

33%

49°

7 PM

71°

71°

Clear

WSW 7

47%

50°

Monday
2 MAR 2026

10 PM

65°

65°

Partly Cloudy

0%

0% Thunder
( 0% severe)

SW 2

60%

51°

Low 53°

1 AM

60°

61°

Partly Cloudy

SSW 1

72%

51°

High 73°

4 AM

57°

58°

Partly Cloudy

0%

0% Thunder
( 0% severe)

CALM

77%

50°

Partly Cloudy

7 AM

55°

55°

Partly Cloudy

CALM

83%

50°

10 AM

64°

66°

Clear

0%

0% Thunder
( 0% severe)

SSW 2

58%

49°

1 PM

71°

71°

Clear

SW 9

39%

45°

4 PM

70°

70°

Clear

WSW 12

39%

44°


ONTARIO, CA extended weather forecast
Tuesday 3 MAR 2026	Wednesday 4 MAR 2026	Thursday 5 MAR 2026	Friday 6 MAR 2026	Saturday 7 MAR 2026
Low 50°	Low 51°	Low 51°	Low 51°	Low 51°
High 74°	High 77°	High 78°	High 74°	High 75°

Partly Cloudy 5% Rain	Partly Cloudy 6% Rain	Partly Cloudy 8% Rain	Partly Cloudy 9% Rain	Mostly Cloudy 19% Rain

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