Riverside–San Bernardino is in for a partly sunny Sunday with a high near 75°F and southwest winds gusting up to 25 mph, as a low-pressure system approaches from the northwest and begins a cooling trend across the Inland Empire.
This morning, expect mostly cloudy skies with a low around 56°F—a pleasant start to the day. By midday, clouds will break up as southwest winds pick up, creating ideal conditions for outdoor activities, though you’ll want to secure any loose items around the yard. If you’re heading to Angel Stadium to catch the Los Angeles Angels vs. New York Mets on Sunday, May 3, the weather will be cooperative for a day game. Grab a Los Angeles Angels jersey or Los Angeles Angels fitted cap to show your support, and snag Get tickets on SeatGeek or Find tickets on StubHub before they sell out. The breezy afternoon won’t be too uncomfortable in the stands, though bring a light jacket for when the sun dips lower.
According to the National Weather Service San Diego office, the marine layer is deepening this morning and could bring patchy drizzle to coastal areas and portions of inland valleys, but the Inland Empire should stay mostly dry. The real story unfolds Monday and Tuesday: a closed upper low will move over central and southern California, bringing stronger onshore flow, significantly lower temperatures, and periods of mostly light showers over and west of the mountains. Daytime highs Monday will drop to around 69°F—about 10 degrees cooler than today—with the coolest conditions expected Monday evening into Tuesday as winds strengthen dramatically. Late Monday, gusts could reach 35 to 45 mph, with isolated gusts to 60 mph in mountain passes and adjacent desert areas. If you have outdoor plans for early next week, plan accordingly and secure any patio furniture or outdoor gear.
For Sunday evening and into Monday night, the mostly cloudy skies will persist with lows around 52–53°F. Allergy sufferers should note that while rain chances remain low through Monday (just 10 percent), the shifting winds and marine layer may stir up pollen; a Levoit air purifier large room can help keep your home’s air clean as conditions change.
Sunday is the last truly pleasant day before the system moves in, so if you’re planning to grill, do it today. A simple pasta or stir-fry works well for any weather, but if you want to take advantage of the afternoon sunshine, fire up the grill while you can. You can order groceries on Amazon and stock up on Amazon Fresh groceries to have everything ready for tonight’s meal.
Looking ahead: Expect a significant cool-down and breezy conditions Monday through Tuesday, with the strongest winds late Monday. Conditions improve by Wednesday into next weekend, becoming drier and warmer. Stay tuned for updates on wind impacts and any localized shower activity.
