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Rain’s moving through Southern California today, October 11, 2026. Forecasters are calling for a 90% chance of precipitation, gusts up to 20 mph, and a half to three-quarters of an inch of new rainfall. Here’s what that means if you’re driving in LA, Orange, San Bernardino, or Riverside County: wet roads, longer stopping distances, and less visibility. Translation? More crashes. Below, we break down how California law treats rain-related accidents, what to do if you’re in one, and how a personal injury claim actually works.
Background: Why Rain Increases Crash Risk in California
Here’s something a lot of people don’t think about. Southern California roads sit dry for months, collecting oil and debris. Then the first rain hits, and all that grime rises right to the surface. Suddenly the pavement is slicker than you’d expect. The CHP and Caltrans both track this — crash rates spike during the season’s first storms, especially in places like West Covina, Pomona, Ontario, and Riverside, where drivers just aren’t used to handling wet roads.
California’s Basic Speed Law (Vehicle Code Section 22350) puts the responsibility on every driver to slow down for the conditions — rain included — even if that means going under the posted limit. Going the speed limit in heavy rain doesn’t protect you from a negligence claim if that speed wasn’t safe for the road. And don’t forget Vehicle Code Section 21703. It requires a safe following distance, and in the rain, “safe” means more space than usual. Wet brakes and wet tires need extra room to stop. Simple as that.
California follows a “pure comparative negligence” rule, meaning more than one driver can share fault for a crash. Under this rule, a driver who is found 20% at fault can still recover 80% of their damages from the other driver. This matters in rain accidents, where weather is often blamed, but a driver’s speed, following distance, or failure to use headlights can still be a factor in the outcome.
How This Affects Drivers and Passengers in Southern California
Anyone who drives, rides, or walks near roads in Los Angeles, Anaheim, San Bernardino, Riverside, Ontario, or Pomona during today’s storm faces a higher chance of being involved in a crash. Common rain-related collisions include rear-end accidents caused by longer stopping distances, hydroplaning when tires lose contact with the road on standing water, and intersection crashes caused by reduced visibility from fogged windows or heavy rainfall.
Rideshare and delivery drivers, commercial truck drivers, and pedestrians are also affected. A pedestrian struck in a crosswalk during rain may have a stronger claim if the driver was speeding for the conditions. A rideshare passenger injured in a crash may have a claim against the driver, the rideshare company’s insurance policy, or both, depending on how California’s layered insurance rules for transportation network companies apply to the specific trip.
Under California’s financial responsibility law, every driver must carry at least $30,000 in bodily injury liability coverage per person and $15,000 in property damage coverage, as of October 11, 2026, under Vehicle Code Section 16056. Many rain-related crashes involve injuries that exceed these minimum limits, which is why drivers may need to look beyond the at-fault driver’s policy for compensation.
What You Should Do Now
- Check for injuries and call 911 if anyone is hurt or if the crash caused significant property damage. California law requires drivers to report a crash to the DMV within 10 days if there is injury, death, or more than $1,000 in property damage, under Vehicle Code Section 20008.
- Move to safety if the vehicles are drivable, and turn on hazard lights given the reduced visibility from rain and wind gusts.
- Document the scene with photos of the vehicles, road conditions, standing water, skid marks, and weather, since rain evidence can disappear quickly once the storm passes.
- Exchange information with the other driver, including license, insurance, and license plate details, and get contact information from any witnesses.
- Seek medical evaluation even if you feel fine, since some injuries from a crash do not show symptoms right away.
- Report the claim to your own insurer and keep a copy of the police report and any medical records.
- Know your deadline. Under California Code of Civil Procedure Section 335.1, a personal injury claim generally must be filed within two years of the crash date, though claims against a government entity (such as a city or county for poor road conditions) may require a notice within six months.
How TEZ Law Firm Can Help
TEZ Law Firm handles personal injury matters, including car accidents that occur during rain and other hazardous weather, for clients across West Covina, City of Industry, and Newport Beach. The firm can review a crash report, help gather evidence about road and weather conditions, and communicate with insurance companies on a client’s behalf. Readers can learn more about the firm’s approach to personal injury and car accident claims before deciding how to proceed.
Frequently Asked Questions
Who is at fault in a car accident caused by rain in California?
Rain itself is not a legal defense to a crash. California law requires drivers to adjust their speed and following distance for wet roads, so a driver who fails to do so can be found at fault, fully or partly, even if the rain was heavy.
What is comparative negligence, and how does it affect my claim?
Comparative negligence is a rule that allows fault to be divided between more than one driver. In California, you can still recover damages even if you were partly at fault, but your recovery is reduced by your percentage of fault.
What is hydroplaning, and can I still make a claim if it caused my crash?
Hydroplaning happens when a layer of water builds up between the tires and the road, causing the driver to lose traction and control. A driver who was going too fast for conditions, resulting in hydroplaning, can still be found negligent, so a claim may be possible depending on the facts.
How long do I have to file a car accident lawsuit in California?
As of October 11, 2026, the general deadline under California Code of Civil Procedure Section 335.1 is two years from the date of the crash for personal injury claims. Claims involving a government entity, such as a poorly maintained road, generally require a formal claim within six months, so it is best to act quickly.
Do I need a police report for a rain-related accident?
California law requires a report to the DMV within 10 days if the crash caused injury, death, or more than $1,000 in property damage. A police report, when available, can also serve as useful documentation of road and weather conditions at the time of the crash.
If you were involved in a car accident during today’s rain in Los Angeles, Orange, San Bernardino, or Riverside County, you do not have to sort out insurance and liability questions alone. TEZ Law Firm, founded by attorney JJ Zhang (California Bar #326666), invites you to schedule a consultation to discuss your situation and understand your options going forward.
This article is general information, not legal advice, and reading it does not create an attorney-client relationship. Laws and agency practices change; contact TEZ Law Firm (West Covina, California) at 626-678-8677 or [email protected] about your situation. Prior results do not guarantee a similar outcome.