Why You Should Visit Ontario, CA
Make your Ontario, CA travel plans and explore a region that’s home to citrus groves and vineyards as well as world-class entertainment. Shop till you drop, race your buddies at the speedway, go skiing, soak at a spa, try your hand at freshwater fishing, or take a day trip to Los Angeles and mingle with Hollywood’s brightest stars.
When You Should Visit Ontario, CA
It’s almost always a gorgeous time to visit Ontario, CA. Take advantage of the warmth in spring, early summer, and fall to explore Kimberly Crest Mansion or Joshua Tree National Park, or visit in the cooler months and make the nearby mountains your home base for skiing. In the height of summer, work on your tan on L.A.'s nearby beaches.
Weather Conditions in Ontario, CA
Visit Ontario, CA from March through June and you’ll encounter moderate temperatures in the 70s and 80s, but come July things really heat up. Expect temps into the 90s through September, but then a chill sets in, cooling things off to an average of 65 degrees or so in January and February—still pleasant enough for jeans and a sweater.