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  5 Day Forecast for Ontario, CA as of 1:53 PM PDT on May 17, 2012
Thursday

Partly Cloudy
HI 86° F
LO 55° F
 		Friday

Partly Cloudy
HI 81° F
LO 57° F
 		Saturday

Partly Cloudy
HI 81° F
LO 57° F
 		Sunday

Partly Cloudy
HI 86° F
LO 57° F
 		Monday

Partly Cloudy
HI 91° F
LO 61° F
  Current Weather Conditions for Ontario, CA as of 1:53 PM PDT on May 17, 2012
Temperature   85° F Dew Point   56° F
Relative Humidity   37% Wind   West 16 mph
Heat Index   84° F Sky   Partly Cloudy
Visibility   8.0 Miles Pressure   29.81 in.
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  Extended Forecast for Ontario, CA 8:00 AM PDT on May 17, 2012
Thursday - Mostly cloudy in the morning, then partly cloudy. High of 86F. Winds from the WSW at 5 to 20 mph.
Local Forecasts
Today's Highs/Lows
Allston 68° / 52°
Boston 68° / 52°
Framingham 72° / 39°
Worcester 66° / 48°
Springfield 72° / 39°
Andover 70° / 41°
Cambridge 68° / 52°
Medford 68° / 52°
Lowell 70° / 41°
Traveler's Forecasts
Today's Highs/Lows
Chicago 73° / 52°
New Orleans 84° / 66°
Detroit 70° / 48°
Las Vegas 100° / 77°
Los Angeles 79° / 59°
Tampa 88° / 66°
Green Bay 70° / 54°
Dallas 88° / 66°
Reno 79° / 48°
Sacramento 81° / 52°
San Diego 68° / 61°
Atlanta 86° / 61°
Washington 75° / 55°
Yosemite National Park 75° / 39°
Thursday Night - Mostly cloudy. Fog overnight. Low of 55F. Winds from the West at 5 to 15 mph.
Friday - Overcast in the morning, then partly cloudy. Fog early. High of 81F. Winds from the WSW at 5 to 15 mph.
Friday Night - Mostly cloudy. Low of 57F. Winds from the WSW at 5 to 15 mph.
Saturday - Mostly cloudy in the morning, then clear. High of 81F. Winds from the WSW at 5 to 15 mph.
Saturday Night - Clear in the evening, then partly cloudy. Low of 57F. Winds less than 5 mph.
Sunday - Partly cloudy in the morning, then clear. High of 86F. Winds from the WSW at 5 to 15 mph.
Sunday Night - Clear in the evening, then partly cloudy. Low of 57F. Winds less than 5 mph.
Monday - Partly cloudy in the morning, then clear. High of 91F. Winds from the WNW at 5 to 15 mph shifting to the SW in the afternoon.
Monday Night - Partly cloudy. Low of 61F. Winds less than 5 mph.
Tuesday - Partly cloudy. High of 84F. Winds from the NW at 5 to 15 mph shifting to the WSW in the afternoon.
Tuesday Night - Partly cloudy. Low of 55F. Winds from the NW at 5 to 15 mph shifting to the North after midnight.
Wednesday - Partly cloudy. High of 88F. Winds from the NNE at 5 to 15 mph shifting to the WSW in the afternoon.
Wednesday Night - Partly cloudy. Low of 55F. Winds from the NW at 5 to 10 mph shifting to the NNE after midnight.
Thursday - Partly cloudy. High of 88F. Winds from the NE at 5 to 10 mph shifting to the WNW in the afternoon.
Thursday Night - Partly cloudy. Low of 59F. Winds less than 5 mph.
Friday - Clear. High of 84F. Winds from the SSW at 5 to 10 mph.
Friday Night - Clear. Low of 57F. Winds less than 5 mph.
Saturday - Clear. High of 82F. Winds from the SW at 5 to 10 mph.
Saturday Night - Clear. Low of 55F. Winds less than 5 mph.
Sunday - Clear. High of 82F. Winds from the SW at 5 to 10 mph.
Sunday Night - Clear. Low of 55F. Winds less than 5 mph.
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Ski Reports
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Record Report As of 6:05 PM PDT on May 16, 2012

... Highest maximum temperature records broken or tied on may 16...

Location new record old record period of record

Big Bear Lake 82 79 in 2009 since 1960
Borrego 107 106 in 1976 since 1942



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