Weather WorldJefferson County, NY 7-Day Night Weather Forecast
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Jefferson County, NY Weather Forecast
Jefferson County, NY Weather Forecast Date: 400 AM EDT Fri Oct 02 2026
The area/counties/county of: Jefferson, including the city of Watertown.or toggle through each period.
Today... Showers this morning, then a chance of showers early this afternoon. Highs ranging from the lower 60s on the tug hill to the mid 60s across the lower elevations. Light winds, becoming west 5 to 10 mph. Chance of rain near 100%.
Tonight... Mostly cloudy in the evening, then clearing. Much cooler. Less humid with lows ranging from the lower 40s across the tug hill to the mid 40s along the lake Ontario shore. Light winds.
Saturday... Sunny. Highs ranging from the upper 50s on the tug hill to the lower 60s across the lower elevations. Light winds.
Saturday Night... Mainly clear. Lows ranging from around 40 across the tug hill to the mid 40s along the lake Ontario shore. Light winds.
Sunday... Mostly sunny. Highs ranging from the lower 60s on the tug hill to the upper 60s across the lower elevations. South winds 5 to 10 mph, increasing to 10 to 15 mph.
Sunday Night... Mostly cloudy with a 50% chance of showers. Lows in the upper 40s.
Monday... Partly sunny with a 50% chance of showers. Highs in the upper 50s.
Monday Night... Mainly clear. Lows in the mid 30s.
Tuesday... Sunny. Highs in the lower 50s.
Tuesday Night... Mainly clear. Lows in the mid 30s.
Wednesday... Sunny. Highs in the lower 60s.
Wednesday Night... Partly cloudy. Lows in the mid 40s.
POP = Probability of Precipitation
Jefferson County Radar Loop
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