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Altmar, NY Weather Forecast
Altmar, NY Weather Forecast Date: 400 AM EDT Fri Sep 11 2026
The area/counties/county of: Oswego, including the city of Oswego.or toggle through each period.
Today... Some patchy fog early, otherwise sunny. Highs ranging from the mid 60s on the tug hill to around 70 across the lower elevations. Light northwest winds.
Tonight... Mainly clear with some patchy fog developing overnight. Lows ranging from the mid 40s across the tug hill to the lower 50s along the lake Ontario shore. Light winds.
Saturday... Sunny in the morning, then becoming partly sunny. Highs ranging from the lower 70s on the tug hill to the upper 70s across the lower elevations. Light winds, becoming south 5 to 10 mph.
Saturday Night... Showers likely. Much warmer with lows in the lower 60s. South winds 5 to 10 mph, becoming light. Chance of rain 60%.
Sunday... Mostly cloudy in the morning, then becoming partly sunny. A 50% chance of showers. Humid with highs ranging from the lower 70s on the tug hill to the upper 70s across the lower elevations. Light winds, becoming west 5 to 10 mph.
Sunday Night... Mostly cloudy with a 50% chance of showers. Lows in the lower 50s.
Monday... Mostly sunny. Highs in the upper 60s.
Monday Night... Partly cloudy. Lows around 50.
Tuesday... Partly sunny with a 40% chance of showers. Highs in the upper 70s.
Tuesday Night... Showers likely. Lows in the upper 50s. Chance of rain 70%.
Wednesday... Partly sunny with a chance of showers. Highs in the lower 70s. Chance of rain 50%.
Wednesday Night... Mostly cloudy with a 30% chance of showers. Lows in the mid 50s.
POP = Probability of Precipitation
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