| NWS Forecast for: Jefferson County Issued by: National Weather Service Buffalo, NY Last Update: 400 PM EDT Fri Apr 17 2026 |  |
| Tonight: Mainly clear this evening, then becoming partly cloudy. Lows ranging from the lower 40s along the lake ontario shore to the upper 40s across the tug hill. Light winds, becoming south 5 to 10 mph. Saturday: Mostly sunny in the morning, then partly sunny with a chance of showers in the afternoon. Breezy, warmer with highs ranging from the upper 60s along the lake ontario shore to the lower 70s inland. Southeast winds 10 to 20 mph, becoming south with gusts up to 40 mph. Chance of rain 40 percent. Saturday Night: Rain showers. Locally heavy rainfall possible in the evening. Breezy, cooler with lows ranging from the lower 30s on the tug hill to the mid 30s across the lower elevations. South winds 10 to 20 mph with gusts up to 40 mph, becoming west 5 to 10 mph. Chance of rain near 100 percent. Sunday: Rain showers in the morning, then partly sunny with a chance of rain showers in the afternoon. Much colder with highs ranging from around 40 on the tug hill to the mid 40s across the lower elevations. West winds 5 to 10 mph, increasing to 10 to 15 mph. Chance of rain near 100 percent. Sunday Night: Partly cloudy. Lows ranging from the mid 20s on the tug hill to the upper 20s across the lower elevations. West winds 10 to 15 mph, diminishing to 5 to 10 mph. Monday: Partly sunny. Highs around 40. Monday Night: Partly cloudy. Lows in the mid 20s. Tuesday: Partly sunny with a 30 percent chance of rain showers. Highs in the upper 40s. Tuesday Night: Mostly cloudy with a 30 percent chance of rain showers. Lows in the mid 30s. Wednesday: Mostly sunny. Highs in the lower 50s. Wednesday Night: Partly cloudy. Lows in the mid 30s. Thursday: Mostly sunny. Highs in the mid 50s. Thursday Night: Partly cloudy. Lows around 40. Friday: Mostly sunny. Highs in the lower 60s. | |
| Zone Forecast: Jefferson County | |
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