Riverside–San Bernardino will see rain showers likely overnight into early Sunday morning, with a high near 66°F and gusty west winds up to 25 mph by afternoon.
Here’s what to expect: Overnight (midnight–6 AM), scattered showers will move across the Inland Empire as an upper-level short wave pushes inland. The National Weather Service expects rainfall rates of 0.10” per hour or less for most areas, though heavier bursts could reach 0.25” per hour. Temperatures will hold around 52°F with west winds at 5–10 mph gusting to 20 mph. If you’re heading to the CV Firebirds vs TBD, Round 1, Home Game 3 at Acrisure Arena at Greater Palm Springs on Monday, April 27, you’ll want to note that the rain clears well before game time.
Sunday daytime is your window. A brief lull occurs mid-morning as showers taper off before 11 AM. Expect partly sunny skies to develop by afternoon with temperatures climbing to around 66°F—still cool for late April, running 10–20 degrees below normal. West winds will pick up to 10–15 mph with gusts to 25 mph, so if you’re planning a round at one of the valley’s golf courses, bring a windproof beanie wool to keep warm and stable on the greens.
Sunday night into Monday morning, a second short wave brings isolated to scattered showers, mainly between 11 PM and 5 AM. Snow levels will drop to 5,500–6,000 feet, with 1–3 inches possible above 6,500 feet in the San Bernardino Mountains—good news if you’re planning a Big Bear or Joshua Tree weekend trip next week, but pack accordingly.
Practical takeaways:
- Overnight commuters & early risers: Grab a packable rain jacket and a compact travel umbrella. Roads will be slick; take it slow.
- Outdoor plans: Hold off on yard work or mowing until Monday afternoon when conditions improve.
- Tailgating prep: If you’re heading to Acrisure Arena, Monday’s game day looks much better—mostly sunny and 69°F with light winds. Grab Official team gear on Fanatics to show your support, and Find tickets on StubHub if you need last-minute seats.
- Mountain enthusiasts: The cooler, wetter pattern is perfect for a hike in the San Bernardino foothills early next week. Waterproof hiking boots are your friend on those muddy trails.
With rain in the forecast and temperatures dropping to the low 50s, it’s the perfect night for comfort food. A slow cooker chili or hearty beef stew will warm you right up—set a programmable slow cooker in the morning and come home to dinner ready. For an enameled cast iron Dutch oven, you can also bake cornbread or make a big pot of soup. Need ingredients? You can order groceries on Amazon and have everything for tonight’s dinner delivered to your door.
Looking ahead: Monday turns mostly sunny and warmer (69°F), with little rain chance. Tuesday stays cool but improves further. By mid-week, expect more normal late-April warmth and drier conditions—ideal for getting that yard work done and grilling season into full swing. Stay weather-aware, and check back for updates as this system moves through.
