Boston
Massachusetts, United States · now 49°, clear
September 2025
- Average
- 74° / 58°
- Warmest
- Sep 6, 82°
- Coldest
- Sep 21, 48°
- Rain
- 2.11 in
- Wet days
- 9 days (≥ 0.04 in)
- Against normal
- 1° cooler than normal
- Mon 158°74°−3°
- Tue 257°76°−2°
- Wed 358°80°+2°
- Thu 457°79°+1°
- Fri 50.16 in65°81°+3°
- Sat 60.33 in65°82°+3°
- Sun 70.74 in60°65°−13°
- Mon 853°69°−8°
- Tue 953°67°−10°
- Wed 1057°67°−10°
- Thu 1153°77°±0°
- Fri 1257°68°−8°
- Sat 130.06 in54°74°−1°
- Sun 140.00 in59°77°+1°
- Mon 1559°72°−4°
- Tue 1656°70°−4°
- Wed 170.07 in55°69°−4°
- Thu 180.03 in62°75°+2°
- Fri 1960°78°+5°
- Sat 2053°67°−6°
- Sun 2148°65°−6°
- Mon 2249°70°−1°
- Tue 230.10 in60°80°+9°
- Wed 240.06 in63°69°−3°
- Thu 250.48 in64°73°+1°
- Fri 2665°78°+7°
- Sat 2761°74°+4°
- Sun 280.08 in63°81°+11°
- Mon 2958°76°+6°
- Tue 3057°71°+1°
4 September in past years, 2016–2025
- 2025 Thu57°79°
- 2024 Wed54°78°
- 2023 Mon65°86°
- 2022 Sun62°85°
- 2021 Sat58°77°
- 2020 Fri65°84°
- 2019 Wed0.03 in63°85°
- 2018 Tue0.01 in73°86°
- 2017 Mon57°82°
- 2016 Sun60°73°
· Weather data by ECMWF (CC BY 4.0) via Open-Meteo · Historical weather: ERA5, Copernicus Climate Change Service, via Open-Meteo