RANCHO CUCAMONGA, CA 91739 Weather Forecast & Current Conditions

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91739 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ONTARIO, CA Current Weather
11:53 PM PDT JUN 23, 2025
Broken Clouds 61°F
Feels Like:	60°F
Dewpoint:	54°F
Rel. Hum.:	78%
Visibility:	10 miles
Wind:	WSW at 7 mph
Pressure:	29.95 inches
Last 72 hours
Local Area Snow Depth
California Current Weather
California MOS Forecast Weather

Weather Map

(Automated weather data from NWS/FAA)

91739 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	RANCHO CUCAMONGA, CA 91739 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly clear this evening...becoming partly cloudy. Lows 46 to 55. Areas of winds west 10 to 15 mph with gusts to 25 mph this evening becoming light.

TUESDAY
Partly cloudy with patchy fog in the morning... Becoming mostly sunny. Highs 80 to 87. Areas of winds west to 10 mph...becoming 10 to 15 mph with gusts to 25 mph in the afternoon.

TUESDAY NIGHT
Mostly clear in the evening...becoming partly cloudy. Lows 50 to 58. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

WEDNESDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 86 to 93. Light winds becoming west 10 to 15 mph with gusts to 25 mph in the afternoon.

WEDNESDAY NIGHT
Mostly clear. Lows 54 to 61. Areas of winds west 10 to 15 mph with gusts to 25 mph in the evening becoming light.

THURSDAY
Partly cloudy in the morning...becoming mostly sunny. Highs 88 to 95.

THURSDAY NIGHT
Mostly clear. Lows 55 to 61.

FRIDAY
Partly cloudy in the morning...becoming sunny. Highs 89 to 96.

FRIDAY NIGHT
Mostly clear. Lows 56 to 62.

SATURDAY
Partly cloudy in the morning...becoming sunny. Highs 91 to 98.

SATURDAY NIGHT
Mostly clear. Lows 57 to 63.

SUNDAY
Partly cloudy in the morning...becoming sunny. Highs 93 to 100.

SUNDAY NIGHT
Mostly clear. Lows 58 to 64.

91739 WEATHER SATELLITE LOOPS

Visible Weather Satellite
RANCHO CUCAMONGA, CA 91739

Infrared Weather Satellite
RANCHO CUCAMONGA, CA 91739

91739 WEATHER RADAR LOOP

NEXRAD Weather Radar
RANCHO CUCAMONGA, CA 91739

MOS COMPUTER WEATHER FORECAST

ONTARIO, CA 3 hourly weather forecast

weather forecast created 5:00 PM PDT 6/23/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Tuesday
24 JUN 2025

11 PM

62°

62°

Clear

0%

0% Thunder
( 0% severe)

WSW 7

75%

54°

Low 57°

2 AM

59°

59°

Partly Cloudy

W 5

83%

54°

High 82°

5 AM

58°

59°

Mostly Cloudy

0%

0% Thunder
( 0% severe)

WSW 1

90%

55°

Decreasing Clouds

8 AM

60°

61°

Mostly Cloudy

SW 1

84%

55°

11 AM

69°

69°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 6

59%

54°

2 PM

79°

79°

Clear

WSW 10

39%

52°

5 PM

79°

79°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 12

41%

53°

8 PM

71°

71°

Clear

WSW 10

57%

55°

Wednesday
25 JUN 2025

11 PM

63°

63°

Clear

0%

0% Thunder
( 0% severe)

WSW 6

78%

56°

Low 58°

2 AM

61°

62°

Partly Cloudy

WSW 3

84%

56°

High 88°

5 AM

59°

60°

Partly Cloudy

0%

0% Thunder
( 0% severe)

WSW 1

90%

56°

Decreasing Clouds

8 AM

62°

63°

Mostly Cloudy

SW 1

81%

56°

11 AM

73°

73°

Clear

0%

0% Thunder
( 0% severe)

SW 6

55%

56°

2 PM

84°

83°

Clear

WSW 10

36%

54°

5 PM

85°

84°

Clear

0%

0% Thunder
( 0% severe)

WSW 13

37%

56°

8 PM

75°

75°

Clear

WSW 10

52%

56°


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 59°	Low 61°	Low 61°	Low 61°	Low 63°
High 89°	High 89°	High 92°	High 93°	High 93°

Partly Cloudy 2% Rain	Clear 1% Rain	Partly Cloudy 1% Rain	Clear	Clear 1% Rain

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