BETHLEHEM, PA 18020 Weather Forecast & Current Conditions

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ALLENTOWN, PA
Current Weather

7:51 AM EDT JUN 19, 2026
Clear
66°F
Feels Like: 66°F
Dewpoint: 52°F
Rel. Hum.: 61%
Visibility: 10 miles
Wind: W at 9 mph
Pressure: 29.76 inches
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BETHLEHEM, PA 18020
Weather Forecast

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TODAY
Mostly cloudy this morning, then clearing. Highs in the upper 70s. West winds 15 to 20 mph.
TONIGHT
Clear. Lows in the upper 50s. West winds 10 to 15 mph with gusts up to 25 mph.
SATURDAY
Sunny. Highs around 80. West winds 10 to 15 mph with gusts up to 25 mph.
SATURDAY NIGHT
Mostly clear. Lows in the upper 50s. Northwest winds 10 to 15 mph, becoming west around 5 mph after midnight.
SUNDAY
Sunny. Highs in the lower 80s. West winds 5 to 10 mph.
SUNDAY NIGHT
Partly cloudy in the evening, then mostly cloudy with a chance of showers after midnight. Lows around 60. Chance of rain 50 percent.
MONDAY
Showers. A chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain near 100 percent.
MONDAY NIGHT
Showers with a chance of thunderstorms in the evening, then showers likely after midnight. Lows around 60. Chance of rain near 100 percent.
TUESDAY
Mostly sunny. Highs around 80.
TUESDAY NIGHT
Mostly clear. Lows in the upper 50s.
WEDNESDAY
Sunny. Highs around 80.
WEDNESDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the upper 50s.
THURSDAY
Partly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.

Visible Weather Satellite
BETHLEHEM, PA 18020
Infrared Weather Satellite
BETHLEHEM, PA 18020
NEXRAD Weather Radar
BETHLEHEM, PA 18020

ALLENTOWN, PA 3 hourly weather forecast

weather forecast created  5:00 PM PDT  6/18/2026
Friday
19 JUN 2026
BETHLEHEM, PA 18020 weather forecast Day 1, 0 hours 2 AM 68° 68° Mostly Cloudy 0%

0% Thunder
( 0% severe)
WNW   10 61% 54°
Low 63° BETHLEHEM, PA 18020 weather forecast Day 1, 3 hours 5 AM 64° 64° Mostly Cloudy W   9 67% 53°
High 81° BETHLEHEM, PA 18020 weather forecast Day 1, 6 hours 8 AM 65° 65° Mostly Cloudy 0%

0% Thunder
( 0% severe)
W   9 68% 54°

Partly Cloudy



BETHLEHEM, PA 18020 weather forecast Day 1, 9 hours 11 AM 73° 73° Partly Cloudy W   10 49% 53°
BETHLEHEM, PA 18020 weather forecast Day 1, 12 hours 2 PM 79° 79° Partly Cloudy 1%

0% Thunder
( 5% severe)
WNW   13 39% 52°
BETHLEHEM, PA 18020 weather forecast Day 1, 15 hours 5 PM 81° 80° Partly Cloudy WNW   14 34% 50°
BETHLEHEM, PA 18020 weather forecast Day 1, 18 hours 8 PM 75° 75° Clear 0%

0% Thunder
( 3% severe)
W   12 43% 51°
BETHLEHEM, PA 18020 weather forecast Day 1, 21 hours 11 PM 67° 67° Clear WNW   10 54% 50°
Saturday
20 JUN 2026
BETHLEHEM, PA 18020 weather forecast Day 2, 0 hours 2 AM 63° 62° Clear 0%

0% Thunder
( 0% severe)
W   10 62% 50°
Low 58° BETHLEHEM, PA 18020 weather forecast Day 2, 3 hours 5 AM 60° 58° Clear W   10 69% 50°
High 80° BETHLEHEM, PA 18020 weather forecast Day 2, 6 hours 8 AM 64° 63° Clear 0%

0% Thunder
( 1% severe)
WNW   12 65% 52°

Clear



BETHLEHEM, PA 18020 weather forecast Day 2, 9 hours 11 AM 74° 74° Clear WNW   15 41% 49°
BETHLEHEM, PA 18020 weather forecast Day 2, 12 hours 2 PM 78° 78° Clear 0%

0% Thunder
( 11% severe)
WNW   15 35% 48°
BETHLEHEM, PA 18020 weather forecast Day 2, 15 hours 5 PM 80° 79° Clear W   15 33% 48°
BETHLEHEM, PA 18020 weather forecast Day 2, 18 hours 8 PM 75° 75° Clear 0%

0% Thunder
( 6% severe)
WNW   10 40% 49°
BETHLEHEM, PA 18020 weather forecast Day 2, 21 hours 11 PM 66° 66° Clear WNW   7 56% 50°

ALLENTOWN, PA extended weather forecast

Sunday
21 JUN 2026
Monday
22 JUN 2026
Tuesday
23 JUN 2026
Wednesday
24 JUN 2026
Thursday
25 JUN 2026
Low 57° Low 63° Low 59° Low 58° Low 61°
High 83° High 72° High 84° High 83° High 83°
BETHLEHEM, PA 18020 weather forecast Day 3 BETHLEHEM, PA 18020 weather forecast Day 4 BETHLEHEM, PA 18020 weather forecast Day 5 BETHLEHEM, PA 18020 weather forecast Day 6 BETHLEHEM, PA 18020 weather forecast Day 7
Partly Cloudy
4% Rain
Overcast
77% Rain
Mostly Cloudy
39% Rain
Partly Cloudy
23% Rain
Partly Cloudy
36% Rain
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