
National Weather Service Rain Chances for Florida Florida on Sunday, June 21, 2026.
JACKSONVILLE, Florida – The National Weather Service in Jacksonville has issued a Thunderstorm Outlook for today, with isolated strong thunderstorms possible across northeast Florida and southeast Georgia.
Thunderstorm activity is just starting to develop west of I-75 and will push inland through this afternoon and evening. The strongest storms are expected closer to the I-95 corridor as southwest flow interacts with the east coast sea breeze.
The National Weather Service in Jacksonville is alerting residents of the thunderstorm risk today. The primary threats are damaging wind gusts of 40-50 mph and heavy rainfall, along with frequent lightning.
According to NWS Jacksonville, isolated strong thunderstorms are possible today across northeast Florida and southeast Georgia.
Storms today may produce:
The storms are expected to bring widespread beneficial rainfall across the region.
North Florida areas at highest risk for thunderstorms today include:
Sunday (Today)
Hot with a high near 90°F. Showers and thunderstorms likely, mainly after 2pm into the evening, especially across much of the area with the strongest storms near the I-95 corridor. Chance of precipitation 60%. Hazards include damaging wind gusts up to 50 mph, frequent lightning, and locally heavy downpours.
Sunday Night
A 30% chance of showers and thunderstorms, mainly before midnight. Partly cloudy. Low around 75°F. Southwest wind 5-10 mph.
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