Lewis County, NY Weather Forecast
County weather hub
Sunny
Compare major city weather across Lewis County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 74. Southwest wind 1 to 6 mph.
County Weather Overview
This county weather page brings together forecast coverage for Lewis 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 Lewis County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 27, 2026 10:46 PM EDT
- Forecast office
- BUF
- Source
- NOAA / NWS
Daily Outlook
This Week in Lewis County
Tuesday looks like the warmest upcoming period in Lewis County at 79 degrees F.
Saturday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 8 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 10:46 PM EDT
- Coverage
- 6 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 sourceExtended Forecast
Partly cloudy, with a low around 53. Southwest wind around 5 mph.
Mostly sunny, with a high near 78. Southwest wind 3 to 7 mph.
A chance of rain showers after 8pm. Mostly cloudy, with a low around 58. Southwest wind 1 to 5 mph. Chance of precipitation is 50%.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 77. Southwest wind 1 to 5 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
A chance of rain showers before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 61. Chance of precipitation is 60%.
Rain showers likely before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 76.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Sunny
|
74°F |
1 to 6 mph
SW
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
53°F |
5 mph
SW
|
|
Sunday
Aug 30
|
Mostly Sunny
|
78°F |
3 to 7 mph
SW
|
|
Sunday Night
Aug 30
|
Chance Rain Showers
|
58°F |
1 to 5 mph
SW
|
|
Monday
Aug 31
|
Showers And Thunderstorms Likely
|
77°F |
1 to 5 mph
SW
|
|
Monday Night
Aug 31
|
Showers And Thunderstorms Likely
|
60°F |
3 mph
SW
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
79°F |
5 mph
SW
|
|
Tuesday Night
Sep 1
|
Showers And Thunderstorms Likely
|
61°F |
5 mph
S
|
|
Wednesday
Sep 2
|
Rain Showers Likely
|
78°F |
5 to 8 mph
SW
|
|
Wednesday Night
Sep 2
|
Chance Showers And Thunderstorms
|
59°F |
3 to 7 mph
SW
|
|
Thursday
Sep 3
|
Chance Rain Showers
|
76°F |
3 to 7 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Lewis County.
Coverage
Forecast coverage currently spans 4 of 4 mapped cities in Lewis County.
Largest mapped city population in this region: 2,624.
