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Calcium, NY Weather Forecast
Calcium, NY Weather Forecast Date: 1000 PM EDT Sun Oct 18 2026
The area/counties/county of: Jefferson, including the city of Watertown.or toggle through each period.
Overnight... Clear. Lows ranging from the upper 30s across the tug hill to the mid 40s along the lake Ontario shore. South winds 5 to 10 mph.
Monday... Sunny. Highs around 60. South winds 10 mph or less, becoming southwest.
Monday Night... Mainly clear in the evening, then becoming partly cloudy. Lows ranging from the upper 30s across the tug hill to the lower 40s along the lake Ontario shore. Light winds.
Tuesday... Sunny. Highs in the upper 50s. Northeast winds 5 to 10 mph.
Tuesday Night... Mainly clear. Lows ranging from the lower 30s across the tug hill to the upper 30s along the lake Ontario shore. Light winds.
Wednesday... Sunny. Highs in the upper 50s.
Wednesday Night... Mainly clear. Lows in the mid 30s.
Thursday... Mostly sunny. Highs in the upper 50s.
Thursday Night... Mainly clear. Lows in the mid 30s.
Friday... Sunny. Highs in the lower 50s.
Friday Night... Mainly clear. Lows in the lower 30s.
Saturday... Sunny. Highs in the mid 50s.
Saturday Night... Mainly clear. Lows in the mid 30s.
POP = Probability of Precipitation
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