Jefferson County, NY Weather Forecast

County weather hub

78°
F

Sunny

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

Friday, July 10, 2026
Wind: 6 mph N
This Afternoon

Sunny, with a high near 78. North wind around 6 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
Jul 10 to Jul 16, 2026
Latest sync
Jul 10, 2026 4:36 PM EDT
Forecast office
BUF
Source
NOAA / NWS
Next High
78°F
This Afternoon
Next Low
64°F
Tonight
Rain Outlook
0
Periods mentioning precipitation
Windiest
9 to 16 mph
Tuesday

Daily Outlook

Today
Jul 10
Sunny
78 °F
/ 64°F
Wind 6 mph
Sat
Jul 11
Sunny
77 °F
/ 62°F
Wind 5 to 9 mph
Sun
Jul 12
Sunny
77 °F
/ 65°F
Wind 2 to 8 mph
Mon
Jul 13
Sunny
79 °F
/ 69°F
Wind 8 to 14 mph
Tue
Jul 14
Mostly Sunny
86 °F
/ 70°F
Wind 9 to 16 mph
Wed
Jul 15
Mostly Sunny
84 °F
/ 65°F
Wind 7 to 13 mph
Thu
Jul 16
Mostly Sunny
81 °F
/ 62°F
Wind 3 to 10 mph

This Week in Jefferson County

Tuesday looks like the warmest upcoming period in Jefferson County at 86 degrees F.

Saturday Night is the coolest period ahead with temperatures near 62 degrees F.

The strongest winds are forecast for Tuesday at about 9 to 16 mph SW.

The forecast from Jul 10 through Jul 16 stays mostly dry.

Forecast Details

Last updated
Jul 10, 2026 4:36 PM EDT
Coverage
7 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

Tonight
Jul 10
64°F
Partly Cloudy
5 mph N

Partly cloudy, with a low around 64. North wind around 5 mph.

Saturday
Jul 11
77°F
Sunny
5 to 9 mph NE

Sunny, with a high near 77. Northeast wind 5 to 9 mph.

Saturday Night
Jul 11
62°F
Clear
2 to 9 mph E

Clear, with a low around 62. East wind 2 to 9 mph.

Sunday
Jul 12
77°F
Sunny
2 to 8 mph N

Sunny, with a high near 77. North wind 2 to 8 mph.

Sunday Night
Jul 12
65°F
Mostly Clear
3 to 7 mph SW

Mostly clear, with a low around 65. Southwest wind 3 to 7 mph.

Monday
Jul 13
79°F
Sunny
8 to 14 mph SW

Sunny, with a high near 79. Southwest wind 8 to 14 mph.

Monday Night
Jul 13
69°F
Mostly Clear
7 to 12 mph SW

Mostly clear, with a low around 69. Southwest wind 7 to 12 mph.

Tuesday
Jul 14
86°F
Mostly Sunny
9 to 16 mph SW

Mostly sunny, with a high near 86.

Tuesday Night
Jul 14
70°F
Partly Cloudy
10 to 16 mph W

Partly cloudy, with a low around 70.

Wednesday
Jul 15
84°F
Mostly Sunny
7 to 13 mph W

Mostly sunny, with a high near 84.

Wednesday Night
Jul 15
65°F
Partly Cloudy
2 to 10 mph W

Partly cloudy, with a low around 65.

Thursday
Jul 16
81°F
Mostly Sunny
3 to 10 mph W

Mostly sunny, with a high near 81.

Thursday Night
Jul 16
62°F
Partly Cloudy
3 to 9 mph W

Partly cloudy, with a low around 62.

Detailed Forecast

Period Conditions Temp Wind
This Afternoon
Jul 10
Sunny
78°F
6 mph
N
Tonight
Jul 10
Partly Cloudy
64°F
5 mph
N
Saturday
Jul 11
Sunny
77°F
5 to 9 mph
NE
Saturday Night
Jul 11
Clear
62°F
2 to 9 mph
E
Sunday
Jul 12
Sunny
77°F
2 to 8 mph
N
Sunday Night
Jul 12
Mostly Clear
65°F
3 to 7 mph
SW
Monday
Jul 13
Sunny
79°F
8 to 14 mph
SW
Monday Night
Jul 13
Mostly Clear
69°F
7 to 12 mph
SW
Tuesday
Jul 14
Mostly Sunny
86°F
9 to 16 mph
SW
Tuesday Night
Jul 14
Partly Cloudy
70°F
10 to 16 mph
W
Wednesday
Jul 15
Mostly Sunny
84°F
7 to 13 mph
W
Wednesday Night
Jul 15
Partly Cloudy
65°F
2 to 10 mph
W
Thursday
Jul 16
Mostly Sunny
81°F
3 to 10 mph
W
Thursday Night
Jul 16
Partly Cloudy
62°F
3 to 9 mph
W

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.