Allentown, PA Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Allentown, PA in one place.
Sunny, with a high near 71.
Local Weather Overview
This forecast page for Allentown, 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: Apr 20, 2026 7:09 AM EDT.
The active forecast window currently covers Apr 23 to Apr 26, 2026 for Allentown, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 23 to Apr 26, 2026
- Latest sync
- Apr 20, 2026 7:09 AM EDT
- Forecast office
- PHI
- Source
- NOAA / NWS
Daily Outlook
This Week in Allentown
Thursday looks like the warmest upcoming period in Allentown at 71 degrees F.
Saturday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph E.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 20, 2026 7:09 AM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- PHI
- Radar station
- KDIX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 47.
Mostly sunny, with a high near 69.
A chance of rain showers after 8pm. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.
A chance of rain showers. Mostly cloudy, with a high near 60. Chance of precipitation is 50%.
Rain showers likely. Mostly cloudy, with a low around 45. Chance of precipitation is 60%.
A chance of rain showers. Mostly cloudy, with a high near 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Apr 23
|
Sunny
|
71°F |
0 to 5 mph
NW
|
|
Thursday Night
Apr 23
|
Partly Cloudy
|
47°F |
0 to 5 mph
N
|
|
Friday
Apr 24
|
Mostly Sunny
|
69°F |
0 to 5 mph
N
|
|
Friday Night
Apr 24
|
Chance Rain Showers
|
48°F |
5 mph
NE
|
|
Saturday
Apr 25
|
Chance Rain Showers
|
60°F |
5 to 10 mph
E
|
|
Saturday Night
Apr 25
|
Rain Showers Likely
|
45°F |
5 to 10 mph
E
|
|
Sunday
Apr 26
|
Chance Rain Showers
|
61°F |
5 to 10 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Allentown.
