Riverside and San Bernardino are waking up to patchy fog on Friday, June 5 — but once it burns off by around 8–9 AM PT, the Inland Empire is in for a sunny afternoon with a high near 90°F. Head outside early and plan for shade by midday.
Today’s Setup
The National Weather Service says the marine layer that crept inland from the coast overnight will retreat back toward the coast by late morning. After that, it’s full sunshine and above-normal warmth — a few degrees higher than typical for early June. West winds build through the afternoon at 0–15 mph with gusts up to 25 mph. That breeze brings some relief at Fairmount Park or along the Santa Ana River Trail, but it won’t take the edge off 90°F during peak heating.
Best Window To Be Outside
Get your outdoor time in before noon. Temperatures at Mt. Rubidoux or Box Springs Mountain Regional Park are still manageable before 11 AM PT — after that, dial back the intensity. A portable misting fan is a smart carry for any afternoon patio hangout, and a patio umbrella 10ft wide is worth setting up before guests arrive for a backyard cookout. For a weekend lake run to Lake Perris or the San Jacinto River, the 2-Person Intex Float with Built-In Cooler is on sale for just $24 right now.
Pool & Heat Tips
Before the weekend swim sessions kick off, run pool chlorine test strips to make sure your water is balanced. No heat advisory is in effect today, but 90°F in the Inland Empire calls for early hydration and smart shade between 1–4 PM PT.
Event This Weekend: Colombia vs. Jordan — June 7
Soccer fans have a regional draw on Sunday: Colombia vs. Jordan at Snapdragon Stadium on June 7. The drive from Riverside runs about 90 minutes, and Sunday’s cooling trend makes the commute comfortable. Find tickets on StubHub or Get tickets on SeatGeek while they’re available, and grab Official team gear on Fanatics before the match.
Dinner Tonight
Skip the oven on a 90°F afternoon — pasta primavera or a quick stir-fry keeps the kitchen cool and dinner fast. If you want to fire up the grill instead, a Father’s Day grilling set makes a great Friday-night test run with the family. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
An upper-level low off the British Columbia coast is tracking southeast, bringing gradual cooling through the weekend according to the National Weather Service. Saturday: fog lingers until around 11 AM, then mostly sunny with a high near 85°F — west winds gusting to 25 mph in the afternoon. Sunday: coolest day of the stretch, a few degrees below normal, with the marine layer potentially spreading across much of the inland valleys by morning. Monday–Thursday: minor day-to-day fluctuations, but the National Weather Service notes the potential for significant warming to return late next week — worth watching.
Browse outdoor gear deals to stock up for summer in the Inland Empire.
