Brentwood Rainfall Forecast

  • 70%
  • No Rain
  • 5%
  • 35%
  • 30%
  • 15%
  • 50%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Brentwood Rainfall Statistics

April Rainfall

Islip, Long Island Mac Arthur Airport (7.5 miles)

  • Total Rainfall April

    0.4in

  • Daily Average April

    0.02in

  • Wettest Day 2 April, 2026

    0.1in

  • Wet Days April

    4/22 (18%)

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (7.5 miles)

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  • Annual Average 2021–2025

    44.1in

  • Monthly Average 2021–2026

    3.7in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 16 July, 2023

    4.6in
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