Riverside and San Bernardino are in for a sunny, high-pressure scorcher today, Saturday, with highs near 103°F and almost no wind relief — so get outdoor errands done early and save the heavy activity for evening. Overnight lows only drop to around 71°F, meaning little cooldown before round two.
Today’s Setup
The National Weather Service says a strengthening area of high pressure is centered near the southern Colorado River Valley today, driving the hottest temperatures of the stretch across the Inland Empire. West winds stay light, 0 to 10 mph with gusts to 20 mph. Sunday backs off just slightly to a high near 102°F as the high weakens.
Best Window To Be Outside
Mornings before roughly 9 or 10 a.m. PT are your window — after that, the NWS notes temperatures climb well into the 70s and 80s fast. That makes early tee times the move if you’re headed out with the golf hat visor for a round before the sun takes over, and it’s the smart time for dog walks around Riverside’s Fairmount Park or a sunrise loop near Lake Perris rather than a midday hike.
Heat Risk
Forecasters are urging people away from the coast — which includes all of the Inland Empire — to severely limit or postpone outdoor recreation this weekend. Warm, humid overnight lows in the 70s mean less relief than usual, so if you don’t have reliable A/C, plan time in an air-conditioned space and keep water on hand. Given how dry and hot this pattern is running through our wildfire corridor, it’s also a good weekend to check that your go bag emergency evacuation kit is ready and that a garden hose 100ft actually reaches every corner of the yard.
What To Wear Or Bring
Light, breathable layers, sunscreen, and hydration are non-negotiable. If you’re headed to the water this month, the UPF 50+ Sun Hoodie deal is a cheap way to add sun coverage.
Sports & Events Nearby
Sunday brings a full slate for IE sports fans: the Los Angeles Dodgers host the Boston Red Sox and the Los Angeles Angels host the Milwaukee Brewers, both August 2, with sunny, near-100°F conditions expected for early arrivals and tailgating — dress light and hydrate before first pitch. Grab tickets on SeatGeek or Find tickets on StubHub, and gear up in a Los Angeles Dodgers jersey or Los Angeles Dodgers fitted cap. If you’re making the coastal drive tonight, Zach Bryan plays Snapdragon Stadium — a Zach Bryan t-shirt is an easy add if you’re heading that way.
Tonight’s Dinner
With this kind of heat, keep cooking outside where the fire belongs: burgers, steaks, or grilled chicken with corn on the cob come together fast on the grill. An instant-read meat thermometer takes the guesswork out of doneness, and a grill brush and scraper set keeps grates ready to go. Need ingredients? You can order groceries on Amazon and have Amazon Fresh groceries delivered before you fire up the grates.
Next Few Days
Expect Sunday to hold near 102°F before the high pressure weakens further into early next week, trimming a degree or two off inland highs each day. Temperatures stay near to slightly above normal into next week, so the heat eases gradually rather than breaking outright — keep the same early-morning, hydrate-often playbook through the workweek.

