Weather WorldJefferson County, NY Weather Forecast
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Jefferson County Weather Forecast
| OVERNIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  | | | | | | | | | |
| Clear | Sunny | Partly Cloudy | Sunny | Clear | Sunny | Clear | Mostly Sunny | Clear | Sunny | Clear | Sunny |
| Lo: 40°FLo: 4°C | Hi: 60°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 59°FHi: 15°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 59°FHi: 15°C | Lo: 35°FLo: 2°C | Hi: 51°FHi: 11°C | Lo: 31°FLo: -1°C | Hi: 55°FHi: 13°C | |
POP = Probability of Precipitation.
Weather Outlook Updated: 1000 PM EDT Sun Oct 18 2026 
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Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 1200 AM EDT Mon Oct 19 2026
Key Messages
1) Extended period of fair weather.
Discussion
... KEY MESSAGE 1...Extended period of fair weather.
Surface high pressure will remain anchored over the eastern US this week, that coupled with a ridge of high pressure aloft will maintain fair weather with afternoon temperatures near or above normal.
Aviation
/03Z MONDAY THROUGH FRIDAY/... For the 06Z TAFs, VFR flight conditions are found and these conditions will likely prevail through the TAF period with a light wind with surface high pre...