Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

For More Weather Information:

Tampa Bay, FL Local Forecast Office

6NM WNW Cedar Key FL

Marine Point Forecast

[NOTICE]

Today
High: 88 °F
E 7kt⇓
< 1ft
Tonight
Low: 80 °F
E 9kt
< 1ft
Tuesday
High: 91 °F
ENE 9kt
< 1ft
Tuesday Night
Low: 80 °F
NNE 9kt
< 1ft
Wednesday
High: 89 °F
NNE 9kt
< 1ft
Wednesday Night
Low: 82 °F
NW 8kt
< 1ft
Thursday
High: 88 °F
WSW 8kt
< 1ft
Thursday Night
Low: 81 °F
W 8kt
1ft
Friday
High: 88 °F
WSW 8kt
1ft

High and low forecast temperature values represent air temperature.

Associated Zone Forecast which includes this point

Last Update: 4:35 am CDT Aug 18, 2025
Forecast Valid: 6am CDT Aug 18, 2025-6pm CDT Aug 24, 2025

View Nearby Observations

Detailed Forecast

Today

E wind 5 to 7 kt becoming variable and less than 5 kt. Scattered showers and thunderstorms, mainly after 11am. Seas 1 ft or less.

Tonight

NE wind 7 to 9 kt becoming ESE in the evening. Isolated showers and thunderstorms before 10pm, then isolated showers and thunderstorms after 1am. Seas 1 ft or less.

Tuesday

ENE wind 5 to 9 kt becoming N in the afternoon. Scattered showers and thunderstorms after 11am. Seas 1 ft or less.

Tuesday Night

NNE wind 7 to 9 kt. Isolated showers and thunderstorms before 1am. Seas 1 ft or less.

Wednesday

NNE wind 7 to 9 kt becoming WNW in the afternoon. Scattered showers and thunderstorms, mainly after 1pm. Seas 1 ft or less.

Wednesday Night

NW wind 6 to 8 kt. Scattered showers and thunderstorms. Seas 1 ft or less.

Thursday

WNW wind 5 to 8 kt becoming WSW in the afternoon. Scattered showers and thunderstorms. Seas 1 ft or less.

Thursday Night

W wind 6 to 8 kt. Scattered showers and thunderstorms. Seas around 1 ft.

Friday

WSW wind 5 to 8 kt. Showers and thunderstorms likely, mainly after 1pm. Seas around 1 ft.

Winds and seas higher in and near thunderstorms.

*Notices:

This forecast is for a single location. For safety concerns, mariners should be aware of the weather over a larger area. Forecast information for a larger area can be found within the zone forecast and the NDFD graphics.
The forecast conditions at a particular point may not exceed the criteria of a Small Craft Advisory, Gale, Storm etc. These watches/warnings/advisories are issued for the entire zone in which the point resides and mariners should act accordingly.