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Long Key, FL Weather Forecast for 5-Days

Updated: Sat May 16th 2026 4:45 AM EDT

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Long Key, FL Weather – 5-16 – Sunny
85° / 81°
Sunny
Long Key could see a sunny day with daytime highs of 85°F and nighttime lows near 81°F. Wind will be moderate, blowing around 16mph on average and gusts of 20.1mph at 11 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 83% at 3 PM and 67% being its lowest at 6 PM. Barometric pressure is its highest of 30.08inHg at 10 AM, a lowest point of 30.01inHg at 5 AM with an avg 30.05inHg.
Long Key, FL Weather – 5-17 – Moderate Rain
83° / 82°

Weather Tomorrow

Moderate Rain
In Long Key, it will rain at times with highs near 83°F and lows around 82°F. The chance of rain is 89% with an estimated 0.22in. Wind will be moderate, blowing around 20mph on average and gusts of 27.3mph at 8 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 76% at 6 AM and 69% being its lowest at 12 AM. Barometric pressure is its highest of 30.09inHg at 12 PM, a lowest point of 29.99inHg at 4 AM with an avg 30.04inHg.
Long Key, FL Weather – 5-18 – Moderate Rain
83° / 82°
Moderate Rain
It will rain at times in Long Key, with a high of 83°F and a low of 82°F. The chance of rain is 86% with an estimated 0.26in. Winds will be strong at speeds peaking at 21mph and gusts of 30.4mph at 8 AM. The humidity will be on the higher side, averaging about 74%, the maximum being 76% at 4 AM and 72% being its lowest at 5 PM. Barometric pressure is its highest of 30.11inHg at 10 AM, a lowest point of 30.03inHg at 4 AM with an avg 30.07inHg.
Long Key, FL Weather – 5-19 – Scattered Showers
83° / 81°
Scattered Showers
In Long Key, on and off showers are set to occur with highs near 83°F and lows around 81°F. The chance of rain is 89% with an estimated 0.1in. Winds will be strong at speeds peaking at 21mph and gusts of 27.8mph at 1 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 75% at 2 AM and 70% being its lowest at 6 PM. Barometric pressure is its highest of 30.1inHg at 12 AM, a lowest point of 30.03inHg at 4 AM with an avg 30.06inHg.
Long Key, FL Weather – 5-20 – Scattered Showers
83° / 81°
Scattered Showers
Long Key could see passing showers with daytime highs of 83°F and nighttime lows near 81°F. The chance of rain is 89% with an estimated 0.16in. Winds will be strong at speeds peaking at 21mph and gusts of 27.8mph at 1 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 76% at 3 AM and 70% being its lowest at 11 AM. Barometric pressure is its highest of 30.07inHg at 12 AM, a lowest point of 29.98inHg at 7 PM with an avg 30.02inHg.
Long Key, FL Weather – 5-21 – Scattered Showers
83° / 82°
Scattered Showers
In Long Key, scattered showers are likely with a high near 83°F and a low around 82°F. Rainfall predicted to have a 67% chance with an estimated 0.02in. Wind will be moderate, blowing around 18mph on average and gusts of 23.9mph at 12 AM. The humidity will be on the higher side, averaging about 71%, the maximum being 74% at 5 AM and 69% being its lowest at 10 PM. Barometric pressure is its highest of 30.02inHg at 11 AM, a lowest point of 29.96inHg at 5 AM with an avg 29.99inHg.

Currently

Clear 78°F
30.02 inHg.
Barometer
74%
Humidity
E 7.6 mph
Wind
Clear

5 Day Forecast Nearby

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