Weather forecast for: Oceanside CA
Last Update: 12:11 pm PDT Oct 21, 2026
This Afternoon: A slight chance of showers. Mostly cloudy, with a high near 73. South wind around 15 mph. Chance of precipitation is 20%.
Tonight: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 65. Southwest wind 5 to 10 mph becoming light and variable after midnight. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday: Showers and possibly a thunderstorm before 11am, then a chance of showers between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. High near 68. Light and variable wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night: A chance of showers. Mostly cloudy, with a low around 61. West wind around 5 mph becoming north after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday: Mostly sunny, with a high near 68. Light and variable wind becoming west 5 to 10 mph in the afternoon.
Friday Night: Mostly clear, with a low around 60.
Saturday: Sunny, with a high near 72.
Saturday Night: Mostly clear, with a low around 63.
Sunday: Mostly sunny, with a high near 75.
Sunday Night: Partly cloudy, with a low around 63.
Monday: Mostly sunny, with a high near 76.
Monday Night: Mostly clear, with a low around 63.
Tuesday: Mostly sunny, with a high near 76.
Tuesday Night: Mostly cloudy, with a low around 63.
Wednesday: Partly sunny, with a high near 74.