Fire Island (FI) and NYC Weather

🌤️ Weather Forecast – October 21, 2026 (12:30 PM Update)

📍 NYC & Fire Island

🍂 What a great fall weather pattern! A stretch of cool, comfortable weather is ahead, with generally sunny skies lasting through next weekend and beyond. No rain is in sight—just some high clouds from the offshore storm.

🌊 Northeast winds and high surf will bring some beach erosion today, even with the strong storm remaining offshore. The surf should begin to subside tomorrow.

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🦟 Mosquito Alert Dropped: The colder weather appears to have reduced mosquito activity—some welcome news!

⚠️ Important Tick Information: Ticks remain very active, so continue to be careful!

https://www.facebook.com/groups/141584049360024/permalink/3155886817929717/

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🌀 Hurricane Update

For the latest tropical outlook, visit the National Hurricane Center:

https://www.nhc.noaa.gov/gtwo.php?basin=atlc&fdays=7

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🌊 Water Temperatures

• 🌊 Atlantic Ocean: 62°F

• 🌅 Great South Bay: 56°F

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🔗 Tides

NOAA Tide Predictions – Cherry Grove (Ocean):

https://tidesandcurrents.noaa.gov/noaatidepredictions.html?id=8515228&bdate=20261021&edate=20261022&datum=MLLW&units=standard&clock=12hour&threshold=greaterThan&thresholdvalue=&timezone=LST%2FLDT&interval=hilo&action=dailychart&legacy=false

Great South Bay – Sayville (Brown Creek):

https://www.tide-forecast.com/locations/Sayville-Brown-Creek-Long-Island-New-York/tides/latest

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💧 How Dew Points Feel

• 🌵 Below 55°F: Dry and comfortable

• 🙂 55–60°F: Pleasant

• 😐 60–65°F: Becoming humid

• 🥵 65–70°F: Muggy

• 🔥 70–75°F: Very muggy and oppressive

• ⚠️ Above 75°F: Extreme humidity, with an increased risk of heat stress

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📅 Detailed Forecast

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Wednesday • October 21

• 🌤️ High clouds and high surf

• 🌬️ Winds: Northeast at 10–30 mph

• 🌡️ Highs: Mid-60s

• 💧 Dew Point: Mid-30s

• 🔒 Confidence: High

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Tonight

• 🌙 High clouds

• 🌬️ Winds: Northeast at 10–25 mph

• 🌡️ Lows: Upper 40s

• 💧 Dew Point: Upper 30s

• 🔒 Confidence: High

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Thursday • October 22

• 🌤️ Mainly sunny

• 🌬️ Winds: Northwest at 10–15 mph

• 🌡️ Highs: Mid-60s

• 💧 Dew Point: Low 40s

• 🔒 Confidence: High

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Friday • October 23

• ☀️ Mainly sunny

• 🌬️ Winds: North at 10–25 mph

• 🌡️ Highs: Mid- to upper 50s

• 💧 Dew Point: Mid-20s

• 🔒 Confidence: High

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Saturday • October 24

• ☀️ Mainly sunny

• 🌬️ Winds: Light and variable

• 🌡️ Highs: Around 60°F

• 💧 Dew Point: Low 30s

• 🔒 Confidence: High

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Sunday • October 25

• 🌤️ Mainly sunny

• 🌬️ Winds: Variable at 5–15 mph

• 🌡️ Highs: Low to mid-60s

• 💧 Dew Point: Low 30s

• 🔒 Confidence: High

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Monday • October 26

• 🌤️ Mainly sunny

• 🌬️ Winds: Northwest at 5–15 mph

• 🌡️ Highs: Upper 60s

• 💧 Dew Point: Low 30s

• 🔒 Confidence: High

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Tuesday • October 27

• 🌤️ Mainly sunny

• 🌬️ Winds: Northwest at 5–15 mph

• 🌡️ Highs: Mid-60s

• 💧 Dew Point: Low 40s

• 🔒 Confidence: Medium

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Wednesday • October 28

• 🌤️ High clouds

• 🌬️ Winds: East at 5–15 mph

• 🌡️ Highs: Low 60s

• 💧 Dew Point: Mid-40s

• 🔒 Confidence: High

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Mitchel Volk, MS – Meteorologist, MBA

🌤️ FI NYC Weather

🌀 “We’ve got your weather—coming and going.”