Mercer County, PA Weather Forecast
County weather hub
Sunny
Compare major city weather across Mercer County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 83. Southwest wind around 15 mph, with gusts as high as 26 mph.
County Weather Overview
This county weather page brings together forecast coverage for Mercer County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 5 of 5 mapped cities in Mercer County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 13 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 6:16 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Mercer County
This Afternoon looks like the warmest upcoming period in Mercer County at 83 degrees F.
Saturday Night is the coolest period ahead with temperatures near 32 degrees F.
The strongest winds are forecast for Friday at about 17 to 22 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 6:16 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- PBZ
- Radar station
- KPBZ
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 62. West wind 3 to 14 mph, with gusts as high as 24 mph.
A slight chance of showers and thunderstorms before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 72. Northwest wind 3 to 9 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Mostly cloudy, with a low around 49. North wind 5 to 9 mph.
A chance of rain showers after 2pm. Partly sunny, with a high near 69. East wind around 7 mph. Chance of precipitation is 30%.
Rain showers before 11pm, then showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Cloudy, with a high near 64. Chance of precipitation is 100%.
Rain showers likely. Mostly cloudy, with a low around 36. Chance of precipitation is 70%.
A slight chance of rain showers before 8am. Mostly sunny, with a high near 50.
Mostly clear, with a low around 32.
Sunny, with a high near 60.
Mostly clear, with a low around 39.
Mostly sunny, with a high near 64.
Mostly cloudy, with a low around 43.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 13
|
Sunny
|
83°F |
15 mph
SW
|
|
Tonight
Oct 13
|
Mostly Clear
|
62°F |
3 to 14 mph
W
|
|
Wednesday
Oct 14
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
72°F |
3 to 9 mph
NW
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy
|
49°F |
5 to 9 mph
N
|
|
Thursday
Oct 15
|
Partly Sunny then Chance Rain Showers
|
69°F |
7 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
59°F |
5 to 16 mph
S
|
|
Friday
Oct 16
|
Showers And Thunderstorms
|
64°F |
17 to 22 mph
W
|
|
Friday Night
Oct 16
|
Rain Showers Likely
|
36°F |
21 mph
NW
|
|
Saturday
Oct 17
|
Slight Chance Rain Showers then Mostly Sunny
|
50°F |
16 to 21 mph
NW
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
32°F |
2 to 12 mph
W
|
|
Sunday
Oct 18
|
Sunny
|
60°F |
5 to 9 mph
SW
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
39°F |
7 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
64°F |
9 mph
S
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
43°F |
2 to 7 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Mercer County.
Coverage
Forecast coverage currently spans 5 of 5 mapped cities in Mercer County.
Largest mapped city population in this region: 15,468.
