Grantley, PA Weather Forecast
Local 7-day forecast
Mostly Clear
Track current conditions, temperature changes, wind, and the full daily outlook for Grantley, PA in one place.
Mostly clear, with a low around 48. Wind around 0 mph.
Local Weather Overview
This forecast page for Grantley, 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 15, 2026 6:58 AM EDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Grantley, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 6:58 AM EDT
- Forecast office
- CTP
- Source
- NOAA / NWS
Daily Outlook
This Week in Grantley
Thursday looks like the warmest upcoming period in Grantley at 87 degrees F.
Overnight is the coolest period ahead with temperatures near 48 degrees F.
The strongest winds are forecast for Saturday Night at about 12 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 6:58 AM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- CTP
- Radar station
- KLWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Sunny, with a high near 78. Southeast wind 0 to 6 mph.
Patchy fog after 4am. Mostly clear, with a low around 55. South wind 2 to 6 mph.
Patchy fog before 9am. Sunny, with a high near 85. South wind 1 to 5 mph.
Mostly clear, with a low around 63. South wind 1 to 5 mph.
Mostly sunny, with a high near 87.
A slight chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 68.
Mostly sunny, with a high near 83.
Partly cloudy, with a low around 59.
Partly sunny, with a high near 79.
A slight chance of rain showers after 8pm. Mostly cloudy, with a low around 64.
A slight chance of rain showers before 8am, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 84. Chance of precipitation is 50%.
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. Mostly cloudy, with a high near 77.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Sep 15
|
Mostly Clear
|
48°F |
0 mph
|
|
Tuesday
Sep 15
|
Sunny
|
78°F |
0 to 6 mph
SE
|
|
Tuesday Night
Sep 15
|
Mostly Clear then Patchy Fog
|
55°F |
2 to 6 mph
S
|
|
Wednesday
Sep 16
|
Patchy Fog then Sunny
|
85°F |
1 to 5 mph
S
|
|
Wednesday Night
Sep 16
|
Mostly Clear
|
63°F |
1 to 5 mph
S
|
|
Thursday
Sep 17
|
Mostly Sunny
|
87°F |
2 to 7 mph
S
|
|
Thursday Night
Sep 17
|
Slight Chance Showers And Thunderstorms
|
68°F |
2 to 6 mph
SW
|
|
Friday
Sep 18
|
Mostly Sunny
|
83°F |
2 to 10 mph
N
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
59°F |
5 to 9 mph
N
|
|
Saturday
Sep 19
|
Partly Sunny
|
79°F |
5 to 9 mph
E
|
|
Saturday Night
Sep 19
|
Slight Chance Rain Showers
|
64°F |
12 mph
S
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
84°F |
12 mph
SW
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
63°F |
7 to 10 mph
SE
|
|
Monday
Sep 21
|
Chance Rain Showers
|
77°F |
10 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Grantley.