Cornish, PA Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Cornish, PA in one place.
Showers and thunderstorms likely before noon, then a slight chance of showers and thunderstorms between noon and 1pm, then showers and thunderstorms between 1pm and 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83. Southwest wind 2 to 6 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Cornish, PA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Sep 16, 2026 3:30 AM EDT.
The active forecast window currently covers Sep 17 to Sep 22, 2026 for Cornish, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 22, 2026
- Latest sync
- Sep 16, 2026 3:30 AM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Cornish
Thursday looks like the warmest upcoming period in Cornish at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 59 degrees F.
The strongest winds are forecast for Friday at about 2 to 7 mph N.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 16, 2026 3:30 AM EDT
- Coverage
- 6 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
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 67. Northwest wind 0 to 5 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 8am. Partly sunny, with a high near 78. Chance of precipitation is 20%.
Partly cloudy, with a low around 59.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 65. Chance of precipitation is 60%.
Rain showers likely before 8am, then showers and thunderstorms. Mostly cloudy, with a high near 79. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 90%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
A chance of rain showers before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 78.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
83°F |
2 to 6 mph
SW
|
|
Thursday Night
Sep 17
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
67°F |
0 to 5 mph
NW
|
|
Friday
Sep 18
|
Slight Chance Rain Showers then Partly Sunny
|
78°F |
2 to 7 mph
N
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
59°F |
1 to 6 mph
NE
|
|
Saturday
Sep 19
|
Mostly Sunny then Chance Showers And Thunderstorms
|
80°F |
5 mph
SE
|
|
Saturday Night
Sep 19
|
Showers And Thunderstorms Likely
|
65°F |
3 to 7 mph
SE
|
|
Sunday
Sep 20
|
Showers And Thunderstorms
|
79°F |
7 mph
SW
|
|
Sunday Night
Sep 20
|
Showers And Thunderstorms
|
64°F |
5 mph
SE
|
|
Monday
Sep 21
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
78°F |
6 mph
S
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
63°F |
2 to 6 mph
SE
|
|
Tuesday
Sep 22
|
Chance Rain Showers
|
78°F |
3 to 7 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cornish.