NWS WEATHER
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Riverside–San Bernardino, CA skyline — local weather forecast and conditions
Riverside–San Bernardino, CA Photo: Moaaz Baig
Weather Riverside–San Bernardino, CA

Riverside Weather Sunday: Sunny and 88°F — Perfect Day to Get Outside

Best Window Avoid flooded roads until warnings expire
Rain Risk Flooding active
What To Wear / Bring Turn around at flooded roads; keep alerts on
Useful Links NWS warnings, river gauges, and local road updates
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7-Day Forecast

Sun 88°Sunny
Mon 87°Sunny
Tue 85°Sunny
Wed 86°Sunny
Thu 86°Sunny
Fri 85°Sunny
Sat 83°Sunny

Riverside–San Bernardino kicks off Sunday, May 31 with brilliant sunshine and a high near 88°F — one of the finest spring days of the year and a perfect excuse to head outside before summer heat really takes hold.

Today’s Setup

A departing low-pressure system over the intermountain west has shifted the upper-level flow, pushing inland temperatures 3–7 degrees higher than yesterday, according to the National Weather Service. Expect full sunshine from morning through evening across the Inland Empire. West winds increase through the afternoon — 0 to 15 mph with gusts up to 25 mph — refreshing along the Santa Ana River Trail and at Fairmount Park, but noticeable on the exposed ridgelines above Redlands and San Bernardino. Tonight stays mostly clear with a low near 59°F.

Allergy note: Those afternoon gusts will carry elevated pollen across the valley floor. Sensitive folks should premedicate before heading out.

Best Window To Be Outside

Before 11 AM is your sweet spot — calm, comfortable, and ahead of the peak afternoon wind. Box Springs Mountain Reserve and Lake Perris State Recreation Area are excellent picks for a hike or a picnic. UV index will be high all day, so don’t skip the sunscreen. If a backyard pool session is on the agenda, the 2-Person Intex Float with Built-In Cooler for $24 is a great warm-weather value to grab right now.

Game Day & Concert Conditions

Big Sunday for Inland Empire fans. The Los Angeles Dodgers host the Philadelphia Phillies at Dodger Stadium today, May 31 — warm and sunny all game long, ideal for the drive west and the tailgate. Gear up in your Los Angeles Dodgers jersey and a Los Angeles Dodgers fitted cap to stay comfortable in the stands. Still need seats? Get tickets on SeatGeek or Find tickets on StubHub.

Tonight, MANÁ brings the VIVIR SIN AIRE TOUR to Acrisure Arena at Greater Palm Springs — a desert venue where temperatures drop noticeably after sunset. Wear a MANÁ t-shirt and layer a MANÁ hoodie for the back half of the show and the walk to the parking lot. Find more warm-weather event gear in our outdoor deals.

Looking ahead, the Los Angeles Angels host the Colorado Rockies at Angel Stadium on June 2 and June 3 — both outdoor games look comfortable based on current forecasts. Keep an eye on conditions as those dates approach.

Next Few Days

Monday mirrors today — sunny with a high near 87°F. The National Weather Service expects a stable, tranquil pattern to hold through midweek with very little day-to-day change. Desert communities near Palm Springs warm into the 90s and lower 100s by Wednesday as high pressure tries to expand over the region. The marine layer will keep coastal areas cool each morning but stays well west of the Inland Empire all week. A low-pressure system may brush the Pacific Northwest by next weekend, potentially bringing some cooling our way — though timing and intensity remain uncertain. Enjoy the settled stretch while it lasts.

Tonight’s Dinner

After a warm, sunny day, pasta primavera with fresh seasonal veggies or a quick stir-fry keeps things light and satisfying. You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.

Live Radar — Riverside Area

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Live weather radar for Riverside, CA

Radar data from the National Weather Service