LEHIGH VALLEY, PA 18003 Weather Forecast & Current Conditions

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18003 WEATHER WARNINGS (SEVERE T-STORM & TORNADO)

CURRENT WEATHER
ALLENTOWN, PA Current Weather
5:51 PM EDT SEP 17, 2025
Overcast 70°F
Feels Like:	70°F
Dewpoint:	61°F
Rel. Hum.:	73%
Visibility:	10 miles
Wind:	E at 10 mph
Pressure:	30.04 inches
Last 72 hours
Local Area Snow Depth
Pennsylvania Current Weather
Pennsylvania MOS Forecast Weather

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(Automated weather data from NWS/FAA)

18003 WEATHER FORECAST
10-Day model forecast maps 2025 Hurricanes	LEHIGH VALLEY, PA 18003 Weather Forecast	Snowfall Forecast pages Snow Depth pages

TONIGHT
Mostly cloudy. A chance of showers and thunderstorms this evening, then a slight chance of showers after midnight. Patchy fog this evening, then areas of fog after midnight. Lows around 60. Northeast winds 5 to 10 mph. Chance of rain 50 percent.

THURSDAY
Areas of fog in the morning. Mostly sunny. Warmer with highs in the lower 80s. North winds around 5 mph, becoming northwest in the afternoon.

THURSDAY NIGHT
Mostly clear. Lows in the upper 50s. West winds around 5 mph.

FRIDAY
Sunny. Highs in the lower 80s. Northwest winds 5 to 10 mph.

FRIDAY NIGHT
Mostly clear. Lows in the lower 50s. North winds 5 to 10 mph.

SATURDAY
Sunny. Highs in the mid 70s.

SATURDAY NIGHT
Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 50s.

SUNDAY
Mostly sunny. Highs in the mid 70s.

SUNDAY NIGHT
Partly cloudy in the evening, then becoming mostly cloudy. Lows in the mid 50s.

MONDAY
Partly sunny. Highs in the upper 70s.

MONDAY NIGHT
Partly cloudy. Lows in the upper 50s.

TUESDAY
Mostly sunny. Highs in the lower 80s.

TUESDAY NIGHT
Partly cloudy. Lows around 60.

18003 WEATHER SATELLITE LOOPS

Visible Weather Satellite
LEHIGH VALLEY, PA 18003

Infrared Weather Satellite
LEHIGH VALLEY, PA 18003

18003 WEATHER RADAR LOOP

NEXRAD Weather Radar
LEHIGH VALLEY, PA 18003

MOS COMPUTER WEATHER FORECAST

ALLENTOWN, PA 3 hourly weather forecast

weather forecast created 5:00 AM PDT 9/17/2025

DAY/DATE &
WEATHER FORECAST SUMMARY

Wednesday
17 SEP 2025

2 PM

68°

68°

Mostly Cloudy

44%
RAIN
.1–.25 in

0% Thunder
( 35% severe)

ENE 12

70%

58°

High 69°

5 PM

68°

68°

Mostly Cloudy

ENE 10

73%

59°

Mostly Cloudy

Chance of Rain

8 PM

66°

66°

Mostly Cloudy

17%
RAIN
.01–.1 in

0% Thunder
( 10% severe)

ENE 8

78%

59°

11 PM

64°

64°

Mostly Cloudy

NE 6

90%

61°

Thursday
18 SEP 2025

2 AM

62°

62°

Mostly Cloudy

8%

0% Thunder
( 1% severe)

NNE 5

97%

61°

Low 60°

5 AM

61°

62°

Mostly Cloudy

NNE 3

100%

61°

High 82°

8 AM

62°

63°

Partly Cloudy

4%

0% Thunder
( 3% severe)

N 2

97%

61°

Partly Cloudy

11 AM

71°

71°

Partly Cloudy

N 2

73%

62°

2 PM

79°

80°

Partly Cloudy

3%

0% Thunder
( 4% severe)

W 5

52%

60°

5 PM

80°

81°

Clear

W 6

47%

58°

8 PM

72°

72°

Clear

1%

0% Thunder
( 1% severe)

W 5

59%

57°

11 PM

66°

66°

Clear

W 2

73%

57°

Friday
19 SEP 2025

2 AM

60°

61°

Clear

0%

0% Thunder
( 0% severe)

WNW 2

87%

56°

Low 57°

5 AM

59°

60°

Clear

WNW 3

90%

56°

High 82°

8 AM

61°

62°

Clear

0%

0% Thunder
( 1% severe)

WNW 3

87%

57°

Clear

11 AM

75°

75°

Clear

NNW 7

58%

59°

2 PM

79°

80°

Partly Cloudy

1%

0% Thunder
( 2% severe)

NNW 10

47%

57°

5 PM

78°

79°

Clear

NNW 12

45%

55°

8 PM

69°

69°

Clear

N 9

57%

53°


ALLENTOWN, PA extended weather forecast
Saturday 20 SEP 2025	Sunday 21 SEP 2025	Monday 22 SEP 2025	Tuesday 23 SEP 2025	Wednesday 24 SEP 2025
Low 53°	Low 50°	Low 54°	Low 58°	Low 59°
High 75°	High 74°	High 75°	High 79°	High 79°

Clear 8% Rain	Clear 14% Rain	Overcast 31% Rain	Partly Cloudy 33% Rain	Partly Cloudy 39% Rain

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