Altmar, NY 7-Day Weather Forecast
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Altmar Weather Forecast


Altmar, NY Weather Forecast Date: 408 PM EDT Mon Sep 14 2026
Weather forecast for Altmar, NY
| Tonight |
Tonight... Mainly clear. Lows ranging from the mid 40s across the tug hill to the lower 50s along the lake Ontario shore. Light winds. |
| Tue Hi: 70°FHi: 21°C |
Tuesday... Mostly sunny. Highs ranging from the upper 60s on the tug hill to the lower 70s across the lower elevations. Light winds, becoming south 5 to 10 mph. |
| Wed Lo: 59°F Lo: 15°C |
Wednesday... Partly sunny. A chance of showers in the morning. Highs ranging from the lower 70s on the tug hill to the mid 70s across the lower elevations. Light winds. Chance of rain 30%. |
| Thu Hi: 75°FHi: 24°C Lo: 59°F Lo: 15°C |
Thursday... Showers likely. Highs in the mid 70s. Chance of rain 70%. |
| Fri Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Friday... Mostly sunny. Highs in the lower 70s. |
| Sat Hi: 71°FHi: 22°C Lo: 51°F Lo: 11°C |
Saturday... Partly sunny with a 40% chance of showers. Highs in the lower 70s. |
| Sun Hi: 69°FHi: 21°C Lo: 51°F Lo: 11°C |
Sunday... Partly sunny with a 40% chance of showers. Highs in the upper 60s. |
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