Great River Rainfall Forecast

  • No Rain
  • No Rain
  • 5%
  • No Rain
  • 5%
  • 10%
  • 15%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Great River Rainfall Statistics

August Rainfall

Islip, Long Island Mac Arthur Airport (5 miles)

  • Total Rainfall August

    0.03in

  • Daily Average August

    0.01in

  • Wettest Day 1 August, 2025

    0.03in

  • Wet Days August

    1/5 (20%)

Climate (2010–Present)

Islip, Long Island Mac Arthur Airport (5 miles)

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  • Annual Average 2020–2024

    45.6in

  • Monthly Average 2020–2025

    3.8in

  • Daily Average 2020–2025

    0.1in

  • Wettest Day 16 July, 2023

    4.6in
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