| NWS Forecast for: Jefferson County Issued by: National Weather Service Buffalo, NY Last Update: 230 AM EDT Mon Aug 31 2026 |  |
| Overnight: Mostly cloudy with areas of fog. Lows in the lower 60s. Light winds. Monday: Areas of fog in the morning, otherwise mostly cloudy. A chance of showers in the afternoon. Highs ranging from the lower 70s on the tug hill to the upper 70s across the lower elevations. Light winds. Chance of rain 50 percent. Monday Night: Showers, warm and muggy with lows in the lower 60s. Light winds. Chance of rain 90 percent. Tuesday: Showers likely in the morning, then a chance of showers and thunderstorms in the afternoon. Humid with highs ranging from the lower 70s on the tug hill to the upper 70s across the lower elevations. Light winds. Chance of rain 70 percent. Tuesday Night: Mostly cloudy. A chance of showers in the evening, then a chance of showers and thunderstorms overnight. Warm and muggy with lows in the mid 60s. Light winds. Chance of rain 50 percent. Wednesday: Showers with a chance of thunderstorms. Highs in the upper 70s. Chance of rain 80 percent. Wednesday Night: Showers with a chance of thunderstorms. Lows in the lower 60s. Chance of rain 80 percent. Thursday: Partly sunny with a 50 percent chance of showers. Highs in the mid 70s. Thursday Night: Partly cloudy with a 30 percent chance of showers. Lows in the upper 50s. Friday: Partly sunny. Highs in the lower 70s. Friday Night: Partly cloudy. Lows in the mid 50s. Saturday: Mostly sunny. Highs in the lower 70s. Saturday Night: Mainly clear. Lows in the lower 50s. Sunday: Mostly sunny. Highs in the mid 70s. | |
| Zone Forecast: Jefferson County | |
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