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Onion Key, FL - Lostmans River Marine Weather Forecast

Station LMRF1 - Lostmans River, FL

April 22, 2026 5:00 pm EDT
Location: 25.556N 81.169W
Water Temperature: 77.5°F (25.3°C)
Tide: 0.26 ft


Tonight - 60°F
Apr 22, 2026
6 to 10 mph E
Partly Cloudy
Partly cloudy, with a low around 60. East wind 6 to 10 mph, with gusts as high as 21 mph.
Thursday - 84°F
Apr 23, 2026
6 to 10 mph E
Partly Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 3pm. Partly sunny. High near 84, with temperatures falling to around 80 in the afternoon. East wind 6 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Thursday Night - 62°F
Apr 23, 2026
5 to 9 mph E
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 62. East wind 5 to 9 mph. Chance of precipitation is 20%. New rainfall amounts between a tenth and quarter of an inch possible.
Friday - 86°F
Apr 24, 2026
7 mph SE
Chance Showers And Thunderstorms
A chance of rain showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 86. Southeast wind around 7 mph. Chance of precipitation is 40%.
Friday Night - 62°F
Apr 24, 2026
2 to 6 mph SE
Chance Showers And Thunderstorms then Partly Cloudy
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 62. Southeast wind 2 to 6 mph. Chance of precipitation is 30%.
Saturday - 87°F
Apr 25, 2026
2 to 7 mph SE
Sunny then Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms after 2pm. Sunny, with a high near 87. Southeast wind 2 to 7 mph. Chance of precipitation is 20%.
Saturday Night - 63°F
Apr 25, 2026
1 to 5 mph SE
Slight Chance Showers And Thunderstorms then Mostly Clear
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 63. Southeast wind 1 to 5 mph. Chance of precipitation is 20%.
Sunday - 87°F
Apr 26, 2026
1 to 8 mph S
Sunny
Sunny, with a high near 87. South wind 1 to 8 mph.
Sunday Night - 64°F
Apr 26, 2026
1 to 7 mph N
Mostly Clear
Mostly clear, with a low around 64. North wind 1 to 7 mph.
Monday - 89°F
Apr 27, 2026
1 to 6 mph SE
Sunny
Sunny, with a high near 89.
Monday Night - 65°F
Apr 27, 2026
1 to 5 mph SE
Mostly Clear
Mostly clear, with a low around 65.
Tuesday - 90°F
Apr 28, 2026
2 to 7 mph SE
Sunny
Sunny, with a high near 90.
Tuesday Night - 65°F
Apr 28, 2026
1 to 6 mph SE
Mostly Clear
Mostly clear, with a low around 65.
Wednesday - 89°F
Apr 29, 2026
1 to 8 mph S
Sunny
Sunny, with a high near 89.

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