Onondaga County, NY Weather Forecast
County weather hub
Rain Showers
Compare major city weather across Onondaga County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Rain showers before 2pm. Mostly cloudy, with a high near 62. Northwest wind around 8 mph. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
County Weather Overview
This county weather page brings together forecast coverage for Onondaga County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 9 of 9 mapped cities in Onondaga County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 15 to May 20, 2026
- Latest sync
- May 14, 2026 2:42 AM EDT
- Forecast office
- BGM
- Source
- NOAA / NWS
Daily Outlook
This Week in Onondaga County
Tuesday looks like the warmest upcoming period in Onondaga County at 87 degrees F.
Friday Night is the coolest period ahead with temperatures near 46 degrees F.
The strongest winds are forecast for Saturday at about 7 to 12 mph SW.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- May 14, 2026 2:42 AM EDT
- Coverage
- 6 days
- Time zone
- America/New_York
- Forecast office
- BGM
- Radar station
- KBGM
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 46. Southwest wind 2 to 6 mph.
Mostly sunny, with a high near 77.
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 70. Chance of precipitation is 30%.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 52.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 64.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 40%.
A chance of rain showers before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
May 15
|
Rain Showers
|
62°F |
8 mph
NW
|
|
Friday Night
May 15
|
Partly Cloudy
|
46°F |
2 to 6 mph
SW
|
|
Saturday
May 16
|
Mostly Sunny
|
77°F |
7 to 12 mph
SW
|
|
Saturday Night
May 16
|
Chance Showers And Thunderstorms
|
56°F |
6 to 9 mph
SW
|
|
Sunday
May 17
|
Chance Rain Showers
|
70°F |
8 mph
W
|
|
Sunday Night
May 17
|
Slight Chance Rain Showers then Partly Cloudy
|
52°F |
1 to 5 mph
SW
|
|
Monday
May 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
82°F |
3 to 8 mph
S
|
|
Monday Night
May 18
|
Slight Chance Showers And Thunderstorms
|
64°F |
6 to 12 mph
S
|
|
Tuesday
May 19
|
Chance Showers And Thunderstorms
|
87°F |
8 to 12 mph
SW
|
|
Tuesday Night
May 19
|
Chance Showers And Thunderstorms
|
63°F |
7 mph
SW
|
|
Wednesday
May 20
|
Showers And Thunderstorms Likely
|
77°F |
6 to 10 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Onondaga County.
Coverage
Forecast coverage currently spans 9 of 9 mapped cities in Onondaga County.
Largest mapped city population in this region: 141,229.
