Jefferson County, NY Weather Forecast

County weather hub

43°
F

Mostly Sunny

Compare major city weather across Jefferson County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.

Saturday, April 11, 2026
Wind: 7 to 12 mph W
Saturday

Mostly sunny, with a high near 43. West wind 7 to 12 mph.

County weather hub

County Weather Overview

This county weather page brings together forecast coverage for Jefferson County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.

Current forecast coverage spans 4 of 4 mapped cities in Jefferson County.

Page Snapshot

Page focus
county weather
Forecast window
Apr 11 to Apr 15, 2026
Latest sync
Apr 9, 2026 4:44 PM EDT
Forecast office
BUF
Source
NOAA / NWS
Next High
43°F
Saturday
Next Low
33°F
Saturday Night
Rain Outlook
8
Periods mentioning precipitation
Windiest
13 to 20 mph
Sunday Night

Daily Outlook

Today
Apr 11
Mostly Sunny
43 °F
/ 33°F
Wind 7 to 12 mph
Sun
Apr 12
Mostly Cloudy then Chance Rain Showers
53 °F
/ 49°F
Wind 5 to 14 mph
Mon
Apr 13
Rain Showers Likely
57 °F
/ 50°F
Wind 16 mph
Tue
Apr 14
Chance Rain Showers
60 °F
/ 50°F
Wind 9 mph
Wed
Apr 15
Rain Showers Likely
61 °F
/ 47°F
Wind 10 mph

This Week in Jefferson County

Wednesday looks like the warmest upcoming period in Jefferson County at 61 degrees F.

Saturday Night is the coolest period ahead with temperatures near 33 degrees F.

The strongest winds are forecast for Sunday Night at about 13 to 20 mph S.

Precipitation is mentioned in 8 upcoming forecast periods.

Forecast Details

Last updated
Apr 9, 2026 4:44 PM EDT
Coverage
5 days
Time zone
America/New_York
Forecast office
BUF
Radar station
KTYX

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Saturday Night
Apr 11
33°F
Partly Cloudy
3 to 9 mph SW

Partly cloudy, with a low around 33. Southwest wind 3 to 9 mph.

Sunday
Apr 12
53°F
Mostly Cloudy then Chance Rain Showers
5 to 14 mph SE

A chance of rain showers after 2pm. Mostly cloudy, with a high near 53. Southeast wind 5 to 14 mph. Chance of precipitation is 40%.

Sunday Night
Apr 12
49°F
Rain Showers Likely
13 to 20 mph S

Rain showers likely. Mostly cloudy, with a low around 49. South wind 13 to 20 mph. Chance of precipitation is 60%.

Monday
Apr 13
57°F
Rain Showers Likely
16 mph SW

Rain showers likely. Mostly cloudy, with a high near 57. Chance of precipitation is 70%.

Monday Night
Apr 13
50°F
Rain Showers Likely
7 to 13 mph SW

Rain showers likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.

Tuesday
Apr 14
60°F
Chance Rain Showers
9 mph SW

A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.

Tuesday Night
Apr 14
50°F
Showers And Thunderstorms Likely
8 mph S

Showers and thunderstorms likely. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.

Wednesday
Apr 15
61°F
Rain Showers Likely
10 mph S

Rain showers likely. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.

Wednesday Night
Apr 15
47°F
Rain Showers Likely
10 mph SW

Rain showers likely. Mostly cloudy, with a low around 47.

Detailed Forecast

Period Conditions Temp Wind
Saturday
Apr 11
Mostly Sunny
43°F
7 to 12 mph
W
Saturday Night
Apr 11
Partly Cloudy
33°F
3 to 9 mph
SW
Sunday
Apr 12
Mostly Cloudy then Chance Rain Showers
53°F
5 to 14 mph
SE
Sunday Night
Apr 12
Rain Showers Likely
49°F
13 to 20 mph
S
Monday
Apr 13
Rain Showers Likely
57°F
16 mph
SW
Monday Night
Apr 13
Rain Showers Likely
50°F
7 to 13 mph
SW
Tuesday
Apr 14
Chance Rain Showers
60°F
9 mph
SW
Tuesday Night
Apr 14
Showers And Thunderstorms Likely
50°F
8 mph
S
Wednesday
Apr 15
Rain Showers Likely
61°F
10 mph
S
Wednesday Night
Apr 15
Rain Showers Likely
47°F
10 mph
SW

Coverage

Tracked cities
4
Coverage
100%

Forecast coverage currently spans 4 of 4 mapped cities in Jefferson County.

Largest mapped city population in this region: 5,876.

Old Jefferson County Courthouse  Arsenal %26 Sherman Streets  Watertown 'Jefferson County  New York'
Old Jefferson County Courthouse Arsenal %26 Sherman Streets Watertown 'Jefferson County New York' image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.