Foster, PA Weather Forecast
Local 7-day forecast
Mostly Sunny then Isolated Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Foster, PA in one place.
Isolated showers and thunderstorms after 5pm. Mostly sunny, with a high near 87. South wind 1 to 5 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Foster, 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 7:28 PM EDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Foster, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 7:28 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in Foster
Wednesday looks like the warmest upcoming period in Foster at 87 degrees F.
Friday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Saturday Night at about 7 to 12 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 7:28 PM 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
Isolated showers and thunderstorms before 8pm, then scattered showers and thunderstorms between 8pm and 9pm, then isolated showers and thunderstorms between 9pm and 10pm, then scattered showers and thunderstorms between 10pm and 2am, then isolated showers and thunderstorms between 2am and 4am, then scattered showers and thunderstorms. Mostly cloudy, with a low around 67. East wind around 2 mph. Chance of precipitation is 30%.
Rain showers likely before 11am, then showers and thunderstorms. Mostly cloudy, with a high near 84. Southwest wind 0 to 8 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms before 2am. Mostly cloudy, with a low around 65. Chance of precipitation is 80%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 80.
Partly cloudy, with a low around 57.
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 64. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 70%.
A chance of rain showers before 8am, then showers and thunderstorms likely. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
Showers and thunderstorms likely. Mostly cloudy, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Mostly Sunny then Isolated Showers And Thunderstorms
|
87°F |
1 to 5 mph
S
|
|
Wednesday Night
Sep 16
|
Isolated Showers And Thunderstorms then Scattered Showers And Thunderstorms
|
67°F |
2 mph
E
|
|
Thursday
Sep 17
|
Showers And Thunderstorms
|
84°F |
0 to 8 mph
SW
|
|
Thursday Night
Sep 17
|
Showers And Thunderstorms
|
65°F |
1 to 7 mph
NW
|
|
Friday
Sep 18
|
Mostly Sunny
|
80°F |
3 to 8 mph
N
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
57°F |
7 mph
NE
|
|
Saturday
Sep 19
|
Partly Sunny then Chance Showers And Thunderstorms
|
80°F |
7 mph
SE
|
|
Saturday Night
Sep 19
|
Showers And Thunderstorms Likely
|
64°F |
7 to 12 mph
S
|
|
Sunday
Sep 20
|
Showers And Thunderstorms Likely
|
80°F |
10 mph
SW
|
|
Sunday Night
Sep 20
|
Showers And Thunderstorms Likely
|
62°F |
8 mph
NE
|
|
Monday
Sep 21
|
Showers And Thunderstorms Likely
|
78°F |
8 to 12 mph
S
|
|
Monday Night
Sep 21
|
Showers And Thunderstorms Likely
|
61°F |
8 to 12 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Foster.