Alberto will pose a variety of Hazards for the South over the Memorial Day Weekend

Subtropical Storm Alberto is moving through the Gulf of Mexico and poses several threats to the South. Heavy rainfall and inland flooding is expected in the Southeast on Sunday and into next week. Tropical Storm-force winds and storm surge possible along the northern/eastern Gulf Coast. Swells from Alberto will create dangerous surf and rip currents for beachgoers. Read More >

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Current conditions at

Ontario International Airport (KONT)

Lat: 34.05316°NLon: 117.57685°WElev: 906ft.

Fair

55°F

13°C

Humidity	77%
Wind Speed	WNW 6 MPH
Barometer	29.96 in
Dewpoint	48°F (9°C)
Visibility	10.00 mi
Last update	27 May 12:35 am PDT

More Information:

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

Extended Forecast for

Ontario International Arpt CA

Overnight

Mostly Cloudy
Low: 55 °F
Sunday

Decreasing
Clouds
High: 79 °F
Sunday
Night

Patchy Fog
Low: 57 °F
Memorial
Day

Patchy Fog
then Sunny
High: 84 °F
Monday
Night

Patchy Fog
Low: 58 °F
Tuesday

Patchy Fog
then Sunny
High: 86 °F
Tuesday
Night

Patchy Fog
Low: 58 °F
Wednesday

Patchy Fog
then Sunny
High: 80 °F
Wednesday
Night

Patchy Fog
Low: 58 °F

Detailed Forecast

Overnight

Mostly cloudy, with a low around 55. Calm wind becoming northwest around 5 mph.

Sunday

Mostly cloudy, then gradually becoming sunny, with a high near 79. Light and variable wind becoming west 10 to 15 mph in the morning. Winds could gust as high as 20 mph.

Sunday Night

Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 57. West wind 5 to 15 mph, with gusts as high as 20 mph.

Memorial Day

Patchy fog before 11am. Otherwise, mostly cloudy through mid morning, then gradual clearing, with a high near 84. West wind 5 to 10 mph increasing to 10 to 15 mph in the afternoon. Winds could gust as high as 25 mph.

Monday Night

Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 58. West wind 5 to 15 mph, with gusts as high as 20 mph.

Tuesday

Patchy fog before 11am. Otherwise, mostly sunny, with a high near 86.

Tuesday Night

Patchy fog after 11pm. Otherwise, increasing clouds, with a low around 58.

Wednesday

Patchy fog before 11am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 80.

Wednesday Night

Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 58.

Thursday

Patchy fog before 11am. Otherwise, mostly sunny, with a high near 74.