| NWS Forecast for: Lewis County Issued by: National Weather Service Buffalo, NY Last Update: 1000 PM EDT Tue Sep 29 2026 |  |
| Overnight: Partly to mostly cloudy with areas of fog. Lows in the lower 40s. Light winds. Wednesday: Areas of fog in the morning, otherwise partly sunny in the morning, then becoming mostly cloudy. Warmer with highs ranging from the upper 60s on the hilltops to the lower 70s across the lower elevations. Light south winds. Wednesday Night: Mostly cloudy and milder with lows in the mid 50s. Light winds. Thursday: Mostly sunny in the morning, then mostly cloudy with a chance of showers in the afternoon. Highs ranging from the upper 60s on the hilltops to the lower 70s across the lower elevations. South winds 5 to 10 mph, becoming southwest. Chance of rain 40 percent. Thursday Night: Mostly cloudy. A chance of showers in the evening, then showers likely overnight. Mild with lows in the upper 50s. Light winds. Chance of rain 70 percent. Friday: Showers. Highs in the upper 60s. Chance of rain 80 percent. Friday Night: Showers. Lows in the lower 40s. Chance of rain 80 percent. Saturday: Sunny. Highs in the lower 60s. Saturday Night: Partly cloudy. Lows in the mid 30s. Sunday: Partly sunny with a 30 percent chance of rain showers. Highs in the lower 60s. Sunday Night: Mostly cloudy with a 40 percent chance of showers. Lows in the upper 30s. Monday: Partly sunny with a 30 percent chance of showers. Highs in the upper 50s. Monday Night: Partly cloudy. Lows in the lower 30s. Tuesday: Sunny. Highs in the lower 50s. | |
| Zone Forecast: Lewis County | |
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