Riverside–San Bernardino kicks off the week under mostly sunny skies with a high near 81°F today — and with the National Weather Service forecasting as much as a 10 to 15 degree warmup for the Inland Empire compared to recent days, this is your sign to get outside and make the most of the next 48 hours.
Today’s Setup
North winds of 5 to 15 mph will gust up to 30 mph through midday, especially near the foothills flanking the Cajon Pass and San Gorgonio Pass corridors. Any morning marine layer hanging over the western valleys should clear faster than usual for inland spots — expect full sun by mid-morning in Downtown Riverside and the Ontario area. Tonight turns mostly clear with a comfortable low around 55°F and west winds easing off.
Best Window To Be Outside
Your sweet spot is 8 to 11 AM before peak gusts arrive. Mount Rubidoux, the Jurupa Mountains trail system, and the Santa Ana River Trail are all in great shape for a Monday morning outing. Afternoon patios will be breezy, so keep that in mind when picking a lunch spot. If you’re logging outdoor hours, UPF 50+ Fishing Shirts for $6.50 are a smart way to stay covered without overheating.
Allergy Alert
Dry north winds funneling through the mountain passes are pushing pollen counts higher across the valley floors. Late May means grass and tree pollens are peaking across the Inland Empire. Pack an allergy relief nasal spray for the afternoon, consider a pollen count face mask if you’re doing yard work or gardening, and run a HEPA air purifier indoors overnight — your sinuses will thank you.
Rain, Wind, and Fire Risk
Zero percent chance of rain through at least Tuesday. No Red Flag Warning appears in the current National Weather Service data, but north winds gusting to 30 mph in the Inland Empire’s wildfire corridor always call for situational awareness. Avoid anything that sparks outdoors during peak wind hours and keep defensible space clear around your property.
Angels Series at Angel Stadium
Baseball fans, the Los Angeles Angels host the Athletics for a three-game series starting Tuesday, May 19 through Thursday, May 21 at Angel Stadium in Anaheim. Tuesday looks like a gem — sunny with a high near 87°F and a pleasant drop to around 57°F by evening. Perfect tailgating weather. Bring your Los Angeles Angels jersey or Los Angeles Angels fitted cap and grab your seats via Get tickets on SeatGeek or Find tickets on StubHub before the series fills up.
Dinner Tonight
A light vegetable stir-fry or pasta primavera fits perfectly on a warm, breezy May evening — quick to make and easy on the kitchen heat. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Tuesday tops out near 87°F — the warmest of the stretch — with full sun and north winds gusting to 25 mph. The National Weather Service notes a more persistent coastal eddy develops Tuesday night, potentially pushing marine-layer clouds into the inland valleys by early Thursday morning. Valleys and the coast begin a gradual cooldown by Wednesday while mountains and deserts warm another few to around 5 degrees. The overall pattern through the weekend holds a few to around 5 degrees above average — classic late-May Inland Empire weather. Keep tabs on the Riverside weather forecast for daily updates and browse outdoor gear deals to gear up for the warm stretch ahead.
