Riverside–San Bernardino wakes up to patchy fog this Sunday morning, June 21, but sunny skies and a comfortable high near 83°F are just hours away — making it a great day to get outside once the marine layer burns off.
Today’s Setup
The National Weather Service is tracking a marine layer about 3,000 feet deep this morning, pushing low clouds and patchy fog into the Inland Empire valleys overnight and into the early hours. The good news: forecasters expect clearing to come early — similar to Friday’s pattern — with sunny skies likely by 11 AM PT. Southwest winds will stay light at 0 to 10 mph with gusts up to 20 mph through the afternoon, keeping conditions comfortable as temperatures climb toward 83°F.
Best Window To Be Outside
Late morning through early evening is your golden window today. Head out to Fairmount Park in Riverside, hit a trail at Box Springs Mountain Reserve, or set up in the backyard with a corn hole game set and a patio furniture set once the sun takes full control. A soft cooler backpack is smart to bring if you’re spending the day out — highs near 83°F are warm enough to want cold drinks close. Pool day? A pool float lounger is exactly right for this kind of sunny SoCal Sunday.
Game Day: Dodgers Host the Orioles
The Los Angeles Dodgers host the Baltimore Orioles today at Dodger Stadium, and the weather forecast is practically tailor-made for baseball. That morning fog clears well before first pitch, leaving comfortable sunshine in the low-to-mid 80s by game time. If you’re driving up the 60 or 91 toward Chavez Ravine, give yourself a little extra time in case of early foggy patches on the freeway. Grab a Los Angeles Dodgers jersey or a Los Angeles Dodgers fitted cap before you head out. Still need seats? Get tickets on SeatGeek or Find tickets on StubHub.
Angels fans: the Los Angeles Angels also host the Baltimore Orioles at Angel Stadium on June 23 and June 24 — check the Riverside–San Bernardino weather forecast for updated game day conditions as we get closer.
Dinner Tonight
A light pasta or quick stir-fry fits perfectly with this mild June evening — easy to throw together after a full day outside without heating up the house. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Next Few Days
Monday steps up to near 88°F under sunny skies. From there, a significant warming trend builds through midweek as high pressure develops over the western states — Wednesday and Thursday are expected to be the hottest days, potentially 5 to 10°F above average for inland locations, with the National Weather Service noting areas of moderate HeatRisk possible for valleys and mountains. Forecasters are also tracking a possible influx of mid-level moisture from the south around midweek that could bring cloud cover and a small chance of afternoon showers or thunderstorms Wednesday — unusual for June in the Inland Empire but worth watching. Check outdoor gear deals if you’re planning any midweek activity and want to be prepared.

