


NWS Forecast for: Altmar NY Issued by: National Weather Service Buffalo, NY Last Update: 10:36 am EDT Jul 13, 2025 | ![]() |
Today: Showers and thunderstorms likely before 2pm, then showers and possibly a thunderstorm between 2pm and 5pm, then showers and thunderstorms likely after 5pm. Some of the storms could produce heavy rainfall. High near 85. Southwest wind around 8 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible. Tonight: Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 68. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New rainfall amounts between a half and three quarters of an inch possible. Monday: A chance of showers and thunderstorms before 8am. Partly sunny, with a high near 83. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Monday Night: Mostly clear, with a low around 64. Calm wind. Tuesday: Sunny, with a high near 87. Light and variable wind. Tuesday Night: Mostly clear, with a low around 66. Calm wind. Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Southeast wind around 6 mph becoming southwest in the afternoon. Chance of precipitation is 30%. Wednesday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 70. Light south wind. Chance of precipitation is 30%. Thursday: A chance of showers before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%. Thursday Night: Showers likely, mainly before 8pm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%. Friday: A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 30%. Friday Night: A chance of showers and thunderstorms. Partly cloudy, with a low around 61. Chance of precipitation is 30%. Saturday: Mostly sunny, with a high near 80. | |
Altmar NY 43.51°N 76.01°W (Elev. 571 ft) | |
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