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Hazardous Weather Conditions

Flood Watch in effect from December 31, 10:00 PM PST until January 1, 10:00 PM PST

Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906.0ft.

Rain

62°F

17°C

Humidity	53%
Wind Speed	N 3 MPH
Barometer	30.03 in (1016.93 mb)
Dewpoint	45°F (7°C)
Visibility	10.00 mi
Last update	31 Dec 11:53 AM PST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

Ontario CA

Flood Watch December 31, 10:00pm until January 1, 10:00pm

Click here for hazard details and duration

Flood Watch

This Afternoon
High: 66 °F
Showers
Tonight
Low: 55 °F
Heavy Rain
New Year's Day
High: 63 °F
Heavy Rain
Thursday Night
Low: 51 °F
Chance
Showers then
Mostly Cloudy
Friday
High: 66 °F
Mostly Cloudy
Friday Night
Low: 53 °F
Slight Chance
Showers
Saturday
High: 65 °F
Chance
Showers
Saturday Night
Low: 53 °F
Showers
Likely
Sunday
High: 63 °F
Showers
Likely

Detailed Forecast

This Afternoon

Showers. High near 66. East wind around 5 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

Tonight

Showers, with thunderstorms also possible after 10pm. Some of the storms could produce heavy rainfall. Low around 55. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

New Year's Day

Showers and possibly a thunderstorm before 4pm, then a chance of showers and thunderstorms after 4pm. Some of the storms could produce heavy rainfall. High near 63. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Thursday Night

A chance of showers before 10pm. Mostly cloudy, with a low around 51. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

Friday

Mostly cloudy, with a high near 66. Calm wind becoming south around 5 mph.

Friday Night

A slight chance of showers after 10pm. Mostly cloudy, with a low around 53. Chance of precipitation is 20%.

Saturday

A chance of showers. Cloudy, with a high near 65. Chance of precipitation is 40%.

Saturday Night

Showers likely. Mostly cloudy, with a low around 53.

Sunday

Showers likely. Mostly cloudy, with a high near 63.

Sunday Night

Showers likely. Mostly cloudy, with a low around 51.