BETHLEHEM, PA 18017 Weather Forecast & Current Conditions

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ALLENTOWN, PA
Current Weather

6:51 PM EDT SEP 2, 2025
Clear
73°F
Feels Like: 73°F
Dewpoint: 50°F
Rel. Hum.: 44%
Visibility: 10 miles
Wind: Calm
Pressure: 30.04 inches
Last 72 hours

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BETHLEHEM, PA 18017
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TONIGHT
Partly cloudy. Lows in the lower 50s. Southeast winds around 5 mph this evening, becoming light and variable.
WEDNESDAY
Patchy fog in the morning. Mostly sunny. Highs in the upper 70s. Light and variable winds, becoming south around 5 mph in the afternoon.
WEDNESDAY NIGHT
Mostly clear. Lows in the mid 50s. South winds around 5 mph.
THURSDAY
Mostly sunny. A chance of showers in the afternoon. Highs in the lower 80s. South winds 10 to 15 mph. Chance of rain 40 percent.
THURSDAY NIGHT
Showers likely with a chance of thunderstorms in the evening, then showers likely after midnight. Lows in the lower 60s. South winds 5 to 10 mph. Chance of rain 70 percent.
FRIDAY
Mostly sunny. Highs in the lower 80s.
FRIDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s.
SATURDAY
Partly sunny. A chance of showers in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
SATURDAY NIGHT
Mostly cloudy in the evening, then becoming partly cloudy. A chance of showers. Lows in the mid 50s. Chance of rain 50 percent.
SUNDAY
Mostly sunny. Not as warm with highs in the lower 70s.
SUNDAY NIGHT
Mostly clear. Lows in the upper 40s.
MONDAY
Sunny. Highs in the lower 70s.
MONDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows around 50.

Visible Weather Satellite
BETHLEHEM, PA 18017
Infrared Weather Satellite
BETHLEHEM, PA 18017
NEXRAD Weather Radar
BETHLEHEM, PA 18017

ALLENTOWN, PA 3 hourly weather forecast

weather forecast created  5:00 AM PDT  9/ 2/2025
Tuesday
2 SEP 2025
BETHLEHEM, PA 18017 weather forecast Day 1, 12 hours 2 PM 75° 75° Partly Cloudy 1%

0% Thunder
( 1% severe)
E   6 43% 51°
High 77° BETHLEHEM, PA 18017 weather forecast Day 1, 15 hours 5 PM 76° 78° Partly Cloudy SE   6 40% 50°
Partly Cloudy



BETHLEHEM, PA 18017 weather forecast Day 1, 18 hours 8 PM 69° 69° Clear 1%

0% Thunder
( 1% severe)
SSE   5 53% 51°
BETHLEHEM, PA 18017 weather forecast Day 1, 21 hours 11 PM 62° 63° Partly Cloudy E   2 72% 53°
Wednesday
3 SEP 2025
BETHLEHEM, PA 18017 weather forecast Day 2, 0 hours 2 AM 58° 59° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 87% 54°
Low 53° BETHLEHEM, PA 18017 weather forecast Day 2, 3 hours 5 AM 55° 55° Partly Cloudy   CALM 96% 54°
High 79° BETHLEHEM, PA 18017 weather forecast Day 2, 6 hours 8 AM 58° 59° Partly Cloudy 0%

0% Thunder
( 1% severe)
  CALM 90% 55°

Partly Cloudy



BETHLEHEM, PA 18017 weather forecast Day 2, 9 hours 11 AM 71° 71° Partly Cloudy SW   1 59% 56°
BETHLEHEM, PA 18017 weather forecast Day 2, 12 hours 2 PM 76° 78° Partly Cloudy 1%

0% Thunder
( 3% severe)
SW   3 42% 51°
BETHLEHEM, PA 18017 weather forecast Day 2, 15 hours 5 PM 77° 78° Partly Cloudy SSW   5 39% 50°
BETHLEHEM, PA 18017 weather forecast Day 2, 18 hours 8 PM 70° 70° Clear 0%

0% Thunder
( 2% severe)
S   3 51% 51°
BETHLEHEM, PA 18017 weather forecast Day 2, 21 hours 11 PM 63° 64° Partly Cloudy SE   3 70% 53°
Thursday
4 SEP 2025
BETHLEHEM, PA 18017 weather forecast Day 3, 0 hours 2 AM 59° 60° Clear 2%

0% Thunder
( 2% severe)
SSE   3 87% 55°
Low 55° BETHLEHEM, PA 18017 weather forecast Day 3, 3 hours 5 AM 57° 57° Partly Cloudy ESE   3 93% 55°
High 81° BETHLEHEM, PA 18017 weather forecast Day 3, 6 hours 8 AM 61° 62° Partly Cloudy 1%

0% Thunder
( 3% severe)
SE   3 87% 57°

Partly Cloudy

Chance of Rain

BETHLEHEM, PA 18017 weather forecast Day 3, 9 hours 11 AM 72° 72° Partly Cloudy S   10 64% 59°
BETHLEHEM, PA 18017 weather forecast Day 3, 15 hours 2 PM 78° 79° Partly Cloudy 33%
RAIN
.25–.5 in
0% Thunder
( 18% severe)
S   14 50% 58°
BETHLEHEM, PA 18017 weather forecast Day 3, 18 hours 5 PM 79° 80° Partly Cloudy S   14 47% 57°
BETHLEHEM, PA 18017 weather forecast Day 3, 21 hours 8 PM 72° 72° Mostly Cloudy     SSW   12 64% 59°

ALLENTOWN, PA extended weather forecast

Friday
5 SEP 2025
Saturday
6 SEP 2025
Sunday
7 SEP 2025
Monday
8 SEP 2025
Tuesday
9 SEP 2025
Low 61° Low 65° Low 55° Low 50° Low 56°
High 83° High 82° High 77° High 76° High 77°
BETHLEHEM, PA 18017 weather forecast Day 4 BETHLEHEM, PA 18017 weather forecast Day 5 BETHLEHEM, PA 18017 weather forecast Day 6 BETHLEHEM, PA 18017 weather forecast Day 7 <!--SEARCHED_TOWN_NAME--> weather forecast Day 8
Mostly Cloudy
71% Rain
Overcast
35% Rain
Partly Cloudy
27% Rain
Clear
19% Rain
Partly Cloudy
33% Rain
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