Sacramento is squeezing the most out of a mostly sunny, warm Sunday, April 19, with temperatures climbing into the mid 70s and an expected high near 77°F this afternoon. The skies and light southerly breeze are perfect for outdoor plans, but the quiet stretch is about to end. A storm system is forecast to move inland Monday, April 20, and linger through Wednesday, April 22, bringing valley rain, mountain snow and a higher chance of thunderstorms.
Monday Through Wednesday: Rain, Thunderstorms And Mountain Snow
Rain is expected to reach the valley Monday afternoon, with chances increasing after about 11 a.m., then becoming more likely Monday night into Tuesday. Initial valley rainfall totals look modest, roughly one tenth to one quarter of an inch on Monday, while the foothills could pick up around 1.5-3 inches. In the higher Sierra, forecasts call for about 1-2 feet of snow. The greatest threat for thunderstorms comes on Tuesday, with cooler daytime highs in the low 60s. Forecasters with the National Weather Service Sacramento are keeping a close eye on timing and potential impacts.
Travel And Mountain Impacts
Snow levels are expected to start out relatively high on Monday, around 6,000-7,000 feet, then drop to about 5,000-6,000 feet late Tuesday into Wednesday. That shift will increase the odds of chain controls and slower travel across Sierra passes. Moderate travel impacts are possible, including reduced visibility and temporary restrictions during heavier rain or snow. Before heading into the mountains, check current road closures and chain requirements on Caltrans QuickMap.
Winds And Commute
Southerly winds will strengthen from Sunday into Monday ahead of the storm system. Foothill and mountain locations could see gusts around 25-30 mph, while the valley stays lighter, though still breezy at times. The mix of wind and rain may slow commutes Monday and Tuesday during both the morning and evening rush, so drivers should plan for extra travel time and secure loose outdoor items. Transit riders and motorists should be ready for slower speeds and occasional service impacts when the rain or any thunderstorms pick up.
How To Prepare
If you are planning a trip to the Sierra this week, consider postponing or prepare accordingly: carry chains, make sure your vehicle is ready for winter driving and allow extra time for delays. In the valley, keep an umbrella handy for Monday and be ready for brief heavy downpours and lightning on Tuesday. For ongoing updates and any watches or warnings, follow the National Weather Service Sacramento and check with Caltrans QuickMap before you hit the road.
