Boston
Massachusetts, United States · now 10°, clear
May 2026
- Average
- 21° / 11°
- Warmest
- May 19, 36°
- Coldest
- May 9, 5°
- Rain
- 75.1 mm
- Wet days
- 12 days (≥ 1 mm)
- Against normal
- 2° warmer than normal
- Fri 17°17°+1°
- Sat 23.1 mm7°14°−2°
- Sun 30.6 mm6°12°−4°
- Mon 46°21°+5°
- Tue 50.4 mm12°26°+9°
- Wed 65.2 mm14°22°+7°
- Thu 78.6 mm9°17°+2°
- Fri 80.1 mm6°16°±0°
- Sat 97.9 mm5°15°−2°
- Sun 100.2 mm11°22°+6°
- Mon 110.1 mm9°18°+1°
- Tue 127°18°±0°
- Wed 131.0 mm9°18°±0°
- Thu 1411.0 mm11°17°−2°
- Fri 150.7 mm9°15°−5°
- Sat 169°24°+4°
- Sun 170.2 mm16°31°+10°
- Mon 1816°26°+5°
- Tue 191.0 mm21°36°+15°
- Wed 201.5 mm22°32°+11°
- Thu 2115°22°+1°
- Fri 2210°17°−4°
- Sat 2311°16°−6°
- Sun 2410.5 mm11°12°−10°
- Mon 254.9 mm12°24°+2°
- Tue 2614°28°+5°
- Wed 2718°31°+9°
- Thu 280.6 mm16°23°±0°
- Fri 290.8 mm13°22°−1°
- Sat 3012.5 mm7°15°−7°
- Sun 314.2 mm5°20°−1°
31 May in past years, 2017–2026
- 2026 Sun4.2 mm5°20°
- 2025 Sat26.9 mm11°20°
- 2024 Fri10°23°
- 2023 Wed8°26°
- 2022 Tue1.2 mm13°27°
- 2021 Mon16.0 mm10°17°
- 2020 Sun10°21°
- 2019 Fri11.1 mm13°22°
- 2018 Thu13°27°
- 2017 Wed8.9 mm12°20°
· Weather data by ECMWF (CC BY 4.0) via Open-Meteo · Historical weather: ERA5, Copernicus Climate Change Service, via Open-Meteo