South Bethlehem, PA Weather Forecast
Local 7-day forecast
Rain Showers Likely
Track current conditions, temperature changes, wind, and the full daily outlook for South Bethlehem, PA in one place.
Rain showers likely. Cloudy, with a low around 39. Northwest wind 8 to 12 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for South Bethlehem, 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 18, 2026 10:44 PM EDT.
The active forecast window currently covers Apr 18 to Apr 25, 2026 for South Bethlehem, PA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 18 to Apr 25, 2026
- Latest sync
- Apr 18, 2026 10:44 PM EDT
- Forecast office
- PBZ
- Source
- NOAA / NWS
Daily Outlook
This Week in South Bethlehem
Friday looks like the warmest upcoming period in South Bethlehem at 79 degrees F.
Monday Night is the coolest period ahead with temperatures near 23 degrees F.
The strongest winds are forecast for Sunday at about 8 to 13 mph W.
Precipitation is mentioned in 9 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 10:44 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
Partly sunny, with a high near 51. West wind 8 to 13 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
A chance of rain showers before 8pm, then a chance of rain and snow showers between 8pm and 11pm, then a chance of rain and snow showers between 11pm and 2am. Mostly cloudy, with a low around 30. West wind 5 to 9 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Mostly sunny, with a high near 44. Northwest wind 6 to 10 mph, with gusts as high as 21 mph.
Widespread frost between 4am and 5am. Mostly clear, with a low around 23. Northeast wind 1 to 8 mph.
Sunny, with a high near 59.
A chance of rain showers after 8pm. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.
A chance of rain showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.
A slight chance of rain showers before 8pm. Mostly clear, with a low around 42.
Sunny, with a high near 75.
Mostly clear, with a low around 50.
A slight chance of rain showers after 2pm. Mostly sunny, with a high near 79.
A chance of rain showers. Mostly cloudy, with a low around 54. Chance of precipitation is 40%.
A chance of rain showers before 2pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 70.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tonight
Apr 18
|
Rain Showers Likely
|
39°F |
8 to 12 mph
NW
|
|
Sunday
Apr 19
|
Partly Sunny
|
51°F |
8 to 13 mph
W
|
|
Sunday Night
Apr 19
|
Chance Rain And Snow Showers
|
30°F |
5 to 9 mph
W
|
|
Monday
Apr 20
|
Mostly Sunny
|
44°F |
6 to 10 mph
NW
|
|
Monday Night
Apr 20
|
Mostly Clear then Widespread Frost
|
23°F |
1 to 8 mph
NE
|
|
Tuesday
Apr 21
|
Sunny
|
59°F |
1 to 9 mph
S
|
|
Tuesday Night
Apr 21
|
Chance Rain Showers
|
45°F |
7 mph
SW
|
|
Wednesday
Apr 22
|
Chance Rain Showers
|
69°F |
8 mph
W
|
|
Wednesday Night
Apr 22
|
Slight Chance Rain Showers then Mostly Clear
|
42°F |
2 to 6 mph
N
|
|
Thursday
Apr 23
|
Sunny
|
75°F |
2 to 6 mph
S
|
|
Thursday Night
Apr 23
|
Mostly Clear
|
50°F |
5 mph
SW
|
|
Friday
Apr 24
|
Mostly Sunny then Slight Chance Rain Showers
|
79°F |
3 to 8 mph
SW
|
|
Friday Night
Apr 24
|
Chance Rain Showers
|
54°F |
7 mph
S
|
|
Saturday
Apr 25
|
Showers And Thunderstorms Likely
|
70°F |
8 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Bethlehem.