The number that stops me cold this evening is 98° — Geneva’s projected high for Thursday as the core of an upper-level ridge parks directly over the eastern U.S. That’s not just uncomfortable; that’s the kind of heat that becomes a public safety issue, and NWS Buffalo and NWS Binghamton have both taken it seriously.
Tonight stays warm and dry, with lows settling only to around 62° in Geneva and Canandaigua — no real relief for anyone hoping the overnight will reset things. Skies remain mainly clear, no frost concerns, no precipitation expected.
Tomorrow the heat arrives in earnest. A Heat Advisory is in effect until Tuesday at 8:00 PM, with highs reaching 92° in Geneva and pushing toward the low 90s across the region. NWS also flags the possibility of scattered strong to severe thunderstorms tomorrow as a warm front lifts through — any storm that fires could produce gusty winds and hail, though precipitation chances remain modest at 18%.
The bigger story is Wednesday through Friday, where an Extreme Heat Watch is in effect until Friday at 8:00 PM. Highs climb to 96° Wednesday and 98° Thursday in Geneva — dangerous territory. Heat will ease slightly by Independence Day Saturday, but 87° with a 38% storm chance means the fireworks forecast carries some uncertainty.
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.