BOCA RATON, FL (Boca Post) (Copyright © 2026) — Boca Raton could see scattered showers and a few thunderstorms today before gusty northwest winds usher in much cooler air tonight, with marine hazards building into early week.
Today’s Weather – Sunday, January 18, 2026
Boca Raton starts Sunday with a weather split that will feel familiar by late afternoon, then completely different after dark.
For most neighborhoods along the I-95 corridor and east toward the Intracoastal and the beaches, today brings a mix of sun and passing rain. The National Weather Service forecast for 2 miles ESE of Boca Raton Airport calls for a chance of showers and thunderstorms before 4 p.m., followed by only a slight chance of showers later in the day. The high is expected to top out near 81 degrees, with southwest winds running 5 to 14 mph and gusts reaching about 22 mph. Rain chances today are listed at 40%.
This is not an all-day washout. The forecast is partly sunny, but it is the kind of day where a quick downpour can pop up, especially as the front moves through. If you are out on Glades Road, jogging around Mizner Park, or making errands out west near Lyons Road, you may get dry stretches, then hit a brief burst of rain that changes visibility fast.
The bigger story arrives tonight. Behind the front, temperatures drop hard for South Florida standards. Tonight’s forecast is partly cloudy with a low around 48 degrees. Winds flip to the northwest and pick up, with sustained speeds around 15 to 17 mph and gusts as high as 24 mph. With that breeze, it will feel colder than the thermometer suggests, especially late tonight and early Monday.
If you are heading out for dinner, walking the dog, or coming home late from weekend plans, plan for the “why did I not bring a jacket” moment. That will be most noticeable in open areas near the water and along wider roads where the wind has room to run.
Current Advisories / Watches / Warnings
The National Weather Service Miami office has issued the following alerts:
- Cold Weather Advisory from midnight tonight to 9 a.m. Monday (for FLZ063, FLZ066, FLZ067, FLZ069, FLZ070).
- Small Craft Advisory from 7 p.m. this evening to 10 a.m. Monday (for AMZ630).
- Small Craft Advisory from 3 p.m. this afternoon to 7 p.m. Tuesday (for AMZ650, AMZ651, AMZ670, AMZ671).
- Small Craft Advisory from 11 a.m. this morning to 1 p.m. Monday (for GMZ656, GMZ657, GMZ676).
- Marine forecast hazard: Small Craft Advisory for the coastal waters zone covering Jupiter Inlet to Deerfield Beach out 20 NM and 20 to 60 NM, in effect from 3 p.m. Sunday through Tuesday evening.
Beach and surf conditions also warrant attention. The NWS discussion notes a moderate risk of rip currents persisting across the Palm Beaches today, with a moderate rip current risk also developing on the Gulf beaches later today into tonight.
7 Day Outlook
Today (Sun): Partly sunny, high near 81. A 40% chance of showers and thunderstorms before 4 p.m., then only a slight chance of showers. Southwest wind 5 to 14 mph, gusts up to 22 mph.
Tonight (Sun night): Partly cloudy, low around 48. Breezy northwest wind 15 to 17 mph with gusts up to 24 mph.
Monday (M.L. King Day): Mostly sunny and noticeably cooler, high near 68. Early wind chill values may dip as low as 42. Northwest winds remain breezy at 15 to 17 mph, gusts up to 23 mph.
Monday Night: Partly cloudy, low around 60. North wind 13 to 15 mph with gusts up to 21 mph.
Tuesday: Mostly sunny, high near 73. Breezy northeast wind 14 to 17 mph, gusts up to 26 mph.
Tuesday Night: Mostly cloudy, low around 65. Northeast wind around 18 mph with gusts up to 25 mph.
Wednesday: Partly sunny, high near 75 with a 20% chance of showers after 1 p.m. Breezy east wind 14 to 16 mph, gusts up to 23 mph.
Wednesday Night: Mostly cloudy, low around 68 with a 30% chance of showers and thunderstorms. East wind 11 to 15 mph, gusts up to 21 mph.
Thursday: Mostly cloudy, high near 76. Showers possible, with thunderstorms also possible after 1 p.m. Rain chance 50%. Northeast wind 11 to 14 mph, gusts up to 21 mph.
Thursday Night: Mostly cloudy, low around 67 with a 40% chance of showers.
Friday: Partly sunny, high near 76 with a 40% chance of showers and thunderstorms.
Friday Night: Partly cloudy, low around 68 with a 20% chance of showers and thunderstorms.
Saturday: Sunny, high near 79.
Source: National Weather Service Miami forecast for 2 miles ESE Boca Raton Airport (updated 3:47 a.m. EST Jan. 18, 2026) and NWS Miami Area Forecast Discussion and Marine Forecast products.
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