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Siesta Key, FL Weather Tomorrow

Check the latest weather forecast for Siesta Key tomorrow and over the next 5 days with precipitation chances, day and night conditions, high and low temperatures in Fahrenheit and Celsius, sunrise, sunset, sky conditions, wind chill, and wind speed with direction for the Siesta Key area and around Sarasota county, Florida.
Updated: Sun Sep 13th 2026 2:00 PM EDT
Siesta Key, FL Weather – 9-13 – Overcast
88° / 81°
Overcast
Overcast is in the forecast for Siesta Key, with a high of 88°F and a low of 81°F. Rainfall predicted to have a 72% chance with an estimated 0.21in. Wind will be moderate, blowing around 12mph on average and gusts of 21.5mph at 4 PM. The humidity will be on the higher side, averaging about 72%, the maximum being 67% at 7 PM and 65% being its lowest at 3 PM. Barometric pressure is its highest of 30.03inHg at 10 PM, a lowest point of 29.99inHg at 5 PM with an avg 30.01inHg.
Siesta Key, FL Weather – 9-14 – Light Rain Shower
89° / 83°

Weather Tomorrow

Light Rain Shower
Siesta Key is set for rain showers with temperatures peaking at 89°F and dipping to 83°F. Rainfall predicted to have a 75% chance with an estimated 0.41in. Wind will be moderate, blowing around 11mph on average and gusts of 21mph at 4 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 73% at 7 AM and 59% being its lowest at 12 PM. Barometric pressure is its highest of 30.06inHg at 10 AM, a lowest point of 29.98inHg at 5 PM with an avg 30.01inHg.
Siesta Key, FL Weather – 9-15 – Scattered Showers
91° / 80°
Scattered Showers
Scattered showers are in the forecast for Siesta Key, with a high of 91°F and a low of 80°F. Rainfall predicted to have a 68% chance with an estimated 0.16in. Wind will be moderate, blowing around 17mph on average and gusts of 26.4mph at 11 PM. The humidity will be on the higher side, averaging about 71%, the maximum being 81% at 8 AM and 56% being its lowest at 5 PM. Barometric pressure is its highest of 30.11inHg at 11 AM, a lowest point of 30inHg at 4 AM with an avg 30.05inHg.
Siesta Key, FL Weather – 9-16 – Scattered Showers
88° / 78°
Scattered Showers
Daytime highs will reach 88°F with lows dropping to 78°F in Siesta Key, where showers likely at times. There's a moderate 36% chance of rainfall with an estimated 0.01in. Wind will be moderate, blowing around 19mph on average and gusts of 26.9mph at 8 AM. The humidity will be on the higher side, averaging about 72%, the maximum being 87% at 5 AM and 55% being its lowest at 6 PM. Barometric pressure is its highest of 30.14inHg at 10 AM, a lowest point of 30.05inHg at 5 PM with an avg 30.09inHg.
Siesta Key, FL Weather – 9-17 – Scattered Showers
87° / 77°
Scattered Showers
Daytime highs will reach 87°F with lows dropping to 77°F in Siesta Key, where showers likely at times. There might be light rainfall having a 25% chance with an estimated 0.01in. Wind will be moderate, blowing around 18mph on average and gusts of 25.5mph at 8 AM. The humidity will be on the higher side, averaging about 70%, the maximum being 77% at 8 AM and 60% being its lowest at 1 PM. Barometric pressure is its highest of 30.12inHg at 12 AM, a lowest point of 30.01inHg at 5 PM with an avg 30.06inHg.
Siesta Key, FL Weather – 9-18 – Sunny
87° / 76°
Sunny
In Siesta Key, bright and sunny conditions with highs near 87°F and lows around 76°F. Rainfall predicted to have a 57% chance with an estimated 0.15in. Wind will be moderate, blowing around 11mph on average and gusts of 19.9mph at 12 AM. The humidity will be on the higher side, averaging about 65%, the maximum being 76% at 8 AM and 51% being its lowest at 2 PM. Barometric pressure is its highest of 30.06inHg at 12 AM, a lowest point of 29.93inHg at 5 PM with an avg 30inHg.

Currently

Partly Cloudy 87°F
30.03 inHg.
Barometer
65%
Humidity
WSW 17.3 mph
Wind
Partly Cloudy

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