Smithtown Rainfall Forecast

  • 20%
  • 60%
  • 5%
  • No Rain
  • No Rain
  • 20%
  • 45%
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  • Rainfall Probability Forecast NOAA

  • Rain Today Real-Time

Smithtown Rainfall Statistics

August Rainfall

Islip, Long Island Mac Arthur Airport (6.2 miles)

  • Total Rainfall August

    6.1in

  • Daily Average August

    0.3in

  • Wettest Day 20 August, 2026

    2.8in

  • Wet Days August

    9/22 (41%)

Climate (2021–2025)

Islip, Long Island Mac Arthur Airport (6.2 miles)

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  • Annual Average 2021–2025

    44.1in

  • Monthly Average 2021–2026

    3.6in

  • Daily Average 2021–2026

    0.1in

  • Wettest Day 16 July, 2023

    4.6in
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