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 93. Southwest wind 2 to 8 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
- Jul 14 to Jul 20, 2026
- Latest sync
- Jul 13, 2026 9:58 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Mercer County
Wednesday looks like the warmest upcoming period in Mercer County at 94 degrees F.
Sunday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Wednesday at about 5 to 10 mph W.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 13, 2026 9:58 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 72. West wind around 7 mph.
Sunny, with a high near 94. West wind 5 to 10 mph.
Partly cloudy, with a low around 68. Northwest wind 0 to 9 mph.
Mostly sunny, with a high near 90.
Mostly clear, with a low around 65.
Mostly sunny, with a high near 90.
A chance of showers and thunderstorms after 8pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8am, then showers and thunderstorms likely. Partly sunny, with a high near 86. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms between 8pm and 2am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8am, then a chance of showers and thunderstorms between 8am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 81.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
93°F |
2 to 8 mph
SW
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
72°F |
7 mph
W
|
|
Wednesday
Jul 15
|
Sunny
|
94°F |
5 to 10 mph
W
|
|
Wednesday Night
Jul 15
|
Partly Cloudy
|
68°F |
0 to 9 mph
NW
|
|
Thursday
Jul 16
|
Mostly Sunny
|
90°F |
0 to 9 mph
NW
|
|
Thursday Night
Jul 16
|
Mostly Clear
|
65°F |
1 to 7 mph
NW
|
|
Friday
Jul 17
|
Mostly Sunny
|
90°F |
2 to 8 mph
NW
|
|
Friday Night
Jul 17
|
Chance Showers And Thunderstorms
|
67°F |
6 mph
SE
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
86°F |
6 to 10 mph
SW
|
|
Saturday Night
Jul 18
|
Showers And Thunderstorms Likely
|
65°F |
8 mph
NW
|
|
Sunday
Jul 19
|
Chance Showers And Thunderstorms
|
82°F |
7 to 10 mph
N
|
|
Sunday Night
Jul 19
|
Chance Showers And Thunderstorms
|
62°F |
5 to 9 mph
E
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms
|
81°F |
5 to 8 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.
