There’s something quietly interesting happening on the western end of the forecast tonight — a mid-level trough pushing east is dragging the moisture axis out ahead of it, and as skies clear behind it, conditions are ripening for patchy fog across the southern valleys before sunrise. Worth keeping in mind if you’re driving early Sunday.
Overnight lows will settle into the low-to-mid 60s across most of the region, with the lighter drainage valleys near Watkins Glen and Corning dipping a few degrees cooler — though nothing approaching frost territory. Winds are nearly calm everywhere, which is exactly what sets up the fog potential. No NWS alerts are in effect.
Sunday brings a modest warmup to near 82° in Geneva, but don’t expect clean sunshine — drizzle is likely through the afternoon as moisture creeps back in ahead of the next system. Precipitation chances remain low Sunday (around 18%) but climb sharply by Tuesday, when the better coverage of showers and thunderstorms arrives. By Tuesday and Wednesday, highs drop into the mid-70s and rain chances push into the 90th percentile — a genuine wet stretch for the middle of the week.
Weather Center forecast for the Finger Lakes region. Sourced from NWS, Open-Meteo, NWS Area Forecast Discussion, and USGS stream-flow data. Updated 6 AM, noon, and 6 PM ET.