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Allentown, Pennsylvania weather · now

79°

Clear

Feels
80°
High / Low
86° / 67°
Wind
12 mph W
Humidity
70%
Dry now; thunderstorms expected around 2:00 PM.

Precipitation · next 12 hrs

Peak 42% · 5 PM

9 AM
·
·
12 PM
·
·
3 PM
·
·
6 PM
·
8 PM
GoodAir quality PollenTreeNoneGrassHighWeedLow
Sun 5:40 AM 8:34 PM 14h 54m
Moon Waning Crescent 19% lit

Current weather and 7-day forecast for Allentown, Pennsylvania, sourced directly from the National Weather Service. Expect mostly cloudy then chance showers and thunderstorms today. Today's high is 86° with a low near 67°.

What to wear today

T-shirt and shorts, grab the umbrella

Warm 86°F with passing rain.

Next 24 hours

60° 75° 90° ↑ 85° ↓ 67° 9 AM 12 PM 3 PM 6 PM 9 PM 12 AM 3 AM 6 AM

  1. 9 AM

    76°

    2%

  2. 11 AM

    81°

    3%

  3. 1 PM

    84°

    9%

  4. 3 PM

    84°

    37%

  5. 5 PM

    84°

    42%

  6. 7 PM

    80°

    27%

  7. 9 PM

    77°

    18%

  8. 11 PM

    74°

    16%

  9. 1 AM

    72°

    19%

  10. 3 AM

    70°

    19%

  11. 5 AM

    69°

    16%

  12. 7 AM

    69°

    9%

Live radar

View full radar →
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7 days

  1. Today 7/10 Mostly Cloudy then Chance Showers And Thunderstorms 42% 86° · 67°
    1. 9 AM 76° Partly Sunny 2%
    2. 10 AM 79° Partly Sunny 2%
    3. 11 AM 81° Mostly Cloudy 3%
    4. 12 PM 83° Mostly Cloudy 5%
    5. 1 PM 84° Mostly Cloudy 9%
    6. 2 PM 85° Chance Showers And Thunderstorms 35%
    7. 3 PM 84° Chance Showers And Thunderstorms 37%
    8. 4 PM 84° Chance Showers And Thunderstorms 40%
    9. 5 PM 84° Chance Showers And Thunderstorms 42%
    10. 6 PM 83° Chance Showers And Thunderstorms 34%
    11. 7 PM 80° Chance Showers And Thunderstorms 27%
    12. 8 PM 80° Slight Chance Rain Showers 19%
    13. 9 PM 77° Slight Chance Rain Showers 18%
    14. 10 PM 75° Slight Chance Rain Showers 17%
    15. 11 PM 74° Slight Chance Rain Showers 16%
  2. Sat 7/11 Chance Rain Showers then Chance Showers And Thunderstorms 49% 84° · 63°
    1. 12 AM 73° Slight Chance Rain Showers 18%
    2. 1 AM 72° Slight Chance Rain Showers 19%
    3. 2 AM 71° Slight Chance Rain Showers 20%
    4. 3 AM 70° Slight Chance Rain Showers 19%
    5. 4 AM 69° Slight Chance Rain Showers 17%
    6. 5 AM 69° Slight Chance Rain Showers 16%
    7. 6 AM 67° Patchy Fog 13%
    8. 7 AM 69° Mostly Cloudy 9%
    9. 8 AM 71° Partly Sunny 6%
    10. 9 AM 73° Mostly Cloudy 3%
    11. 10 AM 77° Mostly Cloudy 13%
    12. 11 AM 79° Slight Chance Rain Showers 17%
    13. 12 PM 81° Slight Chance Rain Showers 20%
    14. 1 PM 82° Chance Rain Showers 28%
    15. 2 PM 82° Slight Chance Showers And Thunderstorms 23%
    16. 3 PM 84° Chance Showers And Thunderstorms 40%
    17. 4 PM 83° Chance Showers And Thunderstorms 47%
    18. 5 PM 82° Chance Showers And Thunderstorms 49%
    19. 6 PM 82° Chance Showers And Thunderstorms 38%
    20. 7 PM 81° Slight Chance Showers And Thunderstorms 15%
    21. 8 PM 78° Mostly Clear 3%
    22. 9 PM 76° Partly Cloudy 3%
    23. 10 PM 73° Partly Cloudy 3%
    24. 11 PM 71° Partly Cloudy 3%
  3. Sun 7/12 Sunny 1% 85° · 63°
    1. 12 AM 69° Partly Cloudy 3%
    2. 1 AM 68° Partly Cloudy 3%
    3. 2 AM 67° Partly Cloudy 1%
    4. 3 AM 65° Mostly Clear 1%
    5. 4 AM 64° Mostly Clear 1%
    6. 5 AM 64° Mostly Clear 1%
    7. 6 AM 64° Sunny 1%
    8. 7 AM 66° Sunny 1%
    9. 8 AM 68° Sunny
    10. 9 AM 71° Sunny
    11. 10 AM 75° Sunny
    12. 11 AM 78° Sunny
    13. 12 PM 80° Sunny
    14. 1 PM 82° Sunny
    15. 2 PM 83° Sunny 1%
    16. 3 PM 84° Sunny 1%
    17. 4 PM 85° Sunny 1%
    18. 5 PM 85° Sunny 1%
    19. 6 PM 84° Mostly Clear 1%
    20. 7 PM 82° Mostly Clear 1%
    21. 8 PM 80° Mostly Clear
    22. 9 PM 77° Mostly Clear
    23. 10 PM 74° Mostly Clear
    24. 11 PM 71° Mostly Clear
  4. Mon 7/13 Sunny 0% 86° · 65°
    1. 12 AM 69° Mostly Clear
    2. 1 AM 67° Mostly Clear
    3. 2 AM 66° Mostly Clear
    4. 3 AM 65° Mostly Clear
    5. 4 AM 64° Mostly Clear
    6. 5 AM 63° Mostly Clear
    7. 6 AM 64° Sunny
    8. 7 AM 65° Sunny
    9. 8 AM 68° Sunny
    10. 9 AM 72° Sunny
    11. 10 AM 76° Sunny
    12. 11 AM 80° Sunny
    13. 12 PM 82° Sunny
    14. 1 PM 84° Sunny
    15. 2 PM 84° Sunny
    16. 3 PM 85° Sunny
    17. 4 PM 86° Sunny
    18. 5 PM 86° Sunny
    19. 6 PM 85° Mostly Clear
    20. 7 PM 83° Mostly Clear
    21. 8 PM 80° Mostly Clear
    22. 9 PM 77° Mostly Clear
    23. 10 PM 74° Mostly Clear
    24. 11 PM 72° Mostly Clear
  5. Tue 7/14 Sunny 0% 90° · 70°
    1. 12 AM 71° Mostly Clear
    2. 1 AM 70° Mostly Clear
    3. 2 AM 69° Mostly Clear
    4. 3 AM 68° Mostly Clear
    5. 4 AM 67° Mostly Clear
    6. 5 AM 66° Mostly Clear
    7. 6 AM 66° Sunny
    8. 7 AM 67° Sunny
    9. 8 AM 69° Sunny
    10. 9 AM 73° Sunny
    11. 10 AM 78° Sunny
    12. 11 AM 83° Sunny
    13. 12 PM 86° Sunny
    14. 1 PM 88° Sunny
    15. 2 PM 89° Sunny
    16. 3 PM 90° Sunny
    17. 4 PM 90° Sunny
    18. 5 PM 89° Sunny
    19. 6 PM 88° Mostly Clear
    20. 7 PM 87° Mostly Clear
    21. 8 PM 85° Mostly Clear
    22. 9 PM 82° Mostly Clear
    23. 10 PM 79° Mostly Clear
    24. 11 PM 76° Mostly Clear
  6. Wed 7/15 Sunny 10% 93° · 69°
    1. 12 AM 75° Mostly Clear
    2. 1 AM 74° Mostly Clear
    3. 2 AM 74° Mostly Clear
    4. 3 AM 73° Mostly Clear
    5. 4 AM 72° Mostly Clear
    6. 5 AM 72° Mostly Clear
    7. 6 AM 72° Sunny
    8. 7 AM 72° Sunny
    9. 8 AM 74° Sunny 1%
    10. 9 AM 78° Sunny 1%
    11. 10 AM 82° Sunny 1%
    12. 11 AM 86° Sunny 1%
    13. 12 PM 89° Sunny 1%
    14. 1 PM 91° Sunny 1%
    15. 2 PM 92° Mostly Sunny 5%
    16. 3 PM 93° Mostly Sunny 5%
    17. 4 PM 93° Mostly Sunny 5%
    18. 5 PM 92° Mostly Sunny 5%
    19. 6 PM 91° Partly Cloudy 5%
    20. 7 PM 89° Partly Cloudy 5%
    21. 8 PM 87° Partly Cloudy 10%
    22. 9 PM 84° Partly Cloudy 10%
    23. 10 PM 80° Partly Cloudy 10%
    24. 11 PM 77° Partly Cloudy 10%
  7. Thu 7/16 Mostly Sunny 9% 90° · 68°
    1. 12 AM 75° Partly Cloudy 10%
    2. 1 AM 74° Partly Cloudy 10%
    3. 2 AM 73° Partly Cloudy 9%
    4. 3 AM 71° Partly Cloudy 9%
    5. 4 AM 70° Partly Cloudy 9%
    6. 5 AM 69° Partly Cloudy 9%
    7. 6 AM 69° Mostly Sunny 9%
    8. 7 AM 71° Mostly Sunny 9%
    9. 8 AM 73° Mostly Sunny 4%
    10. 9 AM 76° Mostly Sunny 4%
    11. 10 AM 80° Mostly Sunny 4%
    12. 11 AM 83° Mostly Sunny 4%
    13. 12 PM 85° Mostly Sunny 4%
    14. 1 PM 87° Mostly Sunny 4%
    15. 2 PM 88° Mostly Sunny 6%
    16. 3 PM 89° Mostly Sunny 6%
    17. 4 PM 90° Mostly Sunny 6%
    18. 5 PM 90° Mostly Sunny 6%
    19. 6 PM 89° Partly Cloudy 6%
    20. 7 PM 87° Partly Cloudy 6%
    21. 8 PM 85° Mostly Clear 7%
Extended outlook days 8–16
  1. Fri 7/17 Cloudy 10% 87° · 67°
  2. Sat 7/18 Partly Cloudy 36% 86° · 61°
  3. Sun 7/19 Rain Showers 35% 85° · 64°
  4. Mon 7/20 Drizzle 31% 80° · 69°
  5. Tue 7/21 Cloudy 35% 83° · 67°
  6. Wed 7/22 Cloudy 39% 82° · 62°
  7. Thu 7/23 Drizzle 45% 84° · 68°
  8. Fri 7/24 Thunderstorms 45% 83° · 71°
  9. Sat 7/25 Drizzle 35% 81° · 68°

Days 8+ from the Open-Meteo multi-model ensemble — treat as a guide; accuracy drops past day 7.

Best day this week

Mild temps, low rain chance, clearer skies.

Sunday, 7/12

Sunny, 85° / 63°

  1. Tomorrow84°63°
  2. Sun85°63°
  3. Mon86°65°
  4. Tue90°70°
  5. Wed93°69°
  6. Thu90°68°

Best time to head outside

Picks the upcoming daytime hour with the most favorable conditions for each activity. Factors in temperature, wind, precipitation timing, and pollen.

  • RunTomorrow 6 AM

    comfortable at 64°F · calm wind · no rain expected · rain should clear by 6 AM · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • BikeTomorrow 6 AM

    comfortable at 67°F · calm wind · slight chance of rain (13%) · rain should clear by 6 AM · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Golf10 AM

    comfortable at 79°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Picnic10 AM

    comfortable at 79°F · calm wind · no rain expected · pollen high today — allergy sufferers, take note

    Excellent100 / 100
  • Magic ShowAnytime

    Any weather is magic show weather. Indoors or out, magic doesn't care.

    Corporate Magician Scott Henderson

How well did we do?

Average miss by lead time.

Each morning we save the day's predicted high/low. As later days arrive, we grade what we said against what the station actually recorded.

Same day
±2°
1 day graded
1 day out
±5°
1 day graded
3 days out
±5°
1 day graded
7 days out
±6°
2 days graded
Day-by-day, 1 day out5 days
  1. Wed, Jul 8±5°
    High81°86°-5°
    Low65°61°+4°
  2. Mon, Jul 6pending
    High75°——
    Low62°——
  3. Sun, Jul 5pending
    High84°——
    Low66°——
  4. Sat, Jul 4pending
    High95°——
    Low72°——
  5. Fri, Jul 3pending
    High99°——
    Low78°——

Climate normals

What weather to expect in Allentown

Allentown in July typically averages 87° highs and 68° lows, with about 17 days of rain. The hottest stretch is July (average high 87°); the coldest is January (average low 20°).

MonthAvg highAvg lowRainy days
Jan32°20°11
Feb37°22°12
Mar55°35°14
Apr64°44°13
May70°52°18
Jun83°63°14
Jul87°68°17
Aug81°62°14
Sep77°58°9
Oct66°46°8
Nov54°38°11
Dec39°25°14

Normals derived from the past two years of observations via Open-Meteo's historical archive.

More for Allentown

Other cities in Pennsylvania

Detailed forecast (NWS)

Today
A chance of showers and thunderstorms between 2pm and 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 86. West wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
Saturday
Patchy fog before 7am, then a chance of rain showers between 11am and 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Northeast wind 0 to 5 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Sunday
Sunny, with a high near 85. Northeast wind 0 to 5 mph.
Monday
Sunny, with a high near 86.

Forecast details

NWS gridpoint
PHI 34,107
Radar station
KDIX
Time zone
America/New_York
Coordinates
40.608, -75.490