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 AM PST FEB 18, 2026
Broken Clouds 46°F
Feels Like:	41°F
Dewpoint:	43°F
Rel. Hum.:	89%
Visibility:	10 miles
Wind:	WSW at 9 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 2025 Hurricanes	ONTARIO, CA 91758 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TODAY
Mostly cloudy with a chance of showers this morning, then partly cloudy this afternoon. Highs 49 to 56. Areas of winds west 10 to 20 mph. Gusts to 35 mph...becoming 30 mph this afternoon. Chance of measurable precipitation 50 percent.

TONIGHT
Partly cloudy. Lows 34 to 41. Areas of winds southwest 10 to 15 mph in the evening becoming light.

THURSDAY
Mostly cloudy with a slight chance of showers in the morning, then cloudy with showers in the afternoon. Locally heavy rainfall possible in the afternoon. Highs 47 to 53. Areas of winds southeast 10 to 15 mph with gusts to 25 mph becoming west 15 to 25 mph with gusts to 40 mph in the afternoon.

THURSDAY NIGHT
Mostly cloudy with a chance of showers in the evening, then partly cloudy with a slight chance of showers overnight. Lows 31 to 34 in wind sheltered areas to 32 to 38 in warmer locations. Snow level 2500 feet. Areas of winds west 10 to 20 mph with gusts to 35 mph becoming south 10 mph overnight. Chance of measurable precipitation 50 percent.

FRIDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 53 to 58. Areas of winds south 10 mph.

FRIDAY NIGHT
Mostly clear. Patchy frost in colder...wind sheltered locations overnight. Lows 32 to 39.

SATURDAY
Mostly sunny in the morning...becoming partly cloudy. Warmer. Highs 61 to 66.

SATURDAY NIGHT
Partly cloudy. Lows 39 to 45.

SUNDAY
Partly cloudy. Highs 66 to 71.

SUNDAY NIGHT
Partly cloudy. Lows 43 to 50.

MONDAY
Partly cloudy with a slight chance of showers. Highs 69 to 73.

MONDAY NIGHT
Partly cloudy with a chance of showers. Lows 46 to 52.

TUESDAY
Mostly cloudy in the morning...becoming partly cloudy. A chance of showers. Highs 67 to 72.

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 PM PST 2/17/2026

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
18 FEB 2026

10 PM

51°

46°

Mostly Cloudy

99%
RAIN
***

0% Thunder
( 15% severe)

SW 14

86%

47°

Low 44°

1 AM

51°

45°

Mostly Cloudy

SW 17

83%

46°

High 55°

4 AM

50°

45°

Mostly Cloudy

44%
RAIN
.1–.25 in

0% Thunder
( 7% severe)

W 15

80%

44°

Partly Cloudy

Chance of Rain

7 AM

45°

40°

Partly Cloudy

WSW 10

86%

41°

10 AM

48°

43°

Partly Cloudy

4%

0% Thunder
( 1% severe)

WSW 12

71%

39°

1 PM

53°

49°

Partly Cloudy

WSW 14

52%

36°

4 PM

53°

49°

Partly Cloudy

3%

0% Thunder
( 0% severe)

WSW 12

52%

36°

7 PM

49°

46°

Partly Cloudy

WSW 7

68%

39°

Thursday
19 FEB 2026

10 PM

46°

45°

Partly Cloudy

6%

0% Thunder
( 1% severe)

SSW 3

76%

39°

Low 39°

1 AM

44°

43°

Partly Cloudy

N 1

82%

39°

High 54°

4 AM

43°

42°

Mostly Cloudy

15%
RAIN
<.01 in

0% Thunder
( 2% severe)

CALM

86%

39°

Mostly Cloudy

Rain Likely

7 AM

42°

41°

Mostly Cloudy

SE 1

93%

40°

10 AM

47°

45°

Mostly Cloudy

72%
RAIN
***

0% Thunder
( 6% severe)

SSE 5

86%

43°

1 PM

51°

48°

Mostly Cloudy

SSW 9

77%

44°

4 PM

51°

47°

Mostly Cloudy

54%
RAIN
>2 in

0% Thunder
( 7% severe)

SW 12

77%

44°

7 PM

50°

46°

Mostly Cloudy

WSW 10

77%

43°


ONTARIO, CA extended weather forecast
Friday 20 FEB 2026	Saturday 21 FEB 2026	Sunday 22 FEB 2026	Monday 23 FEB 2026	Tuesday 24 FEB 2026
Low 40°	Low 41°	Low 44°	Low 48°	Low 52°
High 58°	High 64°	High 69°	High 71°	High 69°

Partly Cloudy 56% Rain	Mostly Cloudy 6% Rain	Partly Cloudy 9% Rain	Mostly Cloudy 16% Rain	Overcast 19% Rain

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