Weather for Allentown, Pennsylvania
Current Weather
Five Day Weather Forecast
Sun
H: 56°F
L: 39°F
Mon
H: 48°F
L: 32°F
Tue
H: 54°F
L: 27°F
Wed
H: 61°F
L: 38°F
Thu
H: 64°F
L: 35°F
Air Quality
Nitrogen Dioxide: 3.25 μg/m3
Sulphur Dioxide: 1.95 μg/m3
Ozone: 75 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 7:45 PM
Daylight: 13 hrs 28 mins
Moon Transit: 3:04 PM
Moonset: 11:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Best Times for Fishing or Hunting
Major Periods
4:04 AM - 6:34 AM2:34 PM - 5:04 PM
Minor Periods
12:00 AM - 12:00 AM6:44 AM - 8:14 AM
Action Rating: 4 out of 5
Freeze Watch issued April 19 at 1:11AM EDT until April 21 at 9:00AM EDT by NWS Mount Holly NJ
Effective: Sun April 19, 2026, 1:11 AM
Expires: Sun April 19, 2026, 4:00 PM
* WHAT...Sub-freezing temperatures as low as 26 possible. * WHERE...Portions of central, northern, northwest, and southern New Jersey and east central and southeast Pennsylvania. * WHEN...From late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold.
Freeze Warning issued April 19 at 1:11AM EDT until April 20 at 10:00AM EDT by NWS Mount Holly NJ
Effective: Sun April 19, 2026, 1:11 AM
Expires: Sun April 19, 2026, 4:00 PM
* WHAT...For the Freeze Warning, sub-freezing temperatures as low as 25 expected. For the Freeze Watch, sub-freezing temperatures as low as 19 possible. * WHERE...Carbon and Monroe Counties. * WHEN...For the Freeze Warning, from 11 PM this evening to 10 AM EDT Monday. For the Freeze Watch, from late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold.
Freeze Watch issued April 19 at 1:11AM EDT until April 21 at 9:00AM EDT by NWS Mount Holly NJ
Effective: Sun April 19, 2026, 1:11 AM
Expires: Sun April 19, 2026, 4:00 PM
* WHAT...For the Freeze Warning, sub-freezing temperatures as low as 25 expected. For the Freeze Watch, sub-freezing temperatures as low as 19 possible. * WHERE...Carbon and Monroe Counties. * WHEN...For the Freeze Warning, from 11 PM this evening to 10 AM EDT Monday. For the Freeze Watch, from late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold.
Freeze Watch issued April 19 at 12:33AM EDT until April 21 at 9:00AM EDT by NWS State College PA
Effective: Sun April 19, 2026, 12:33 AM
Expires: Mon April 20, 2026, 3:15 AM
* WHAT...Sub-freezing temperatures as low as 26 possible. * WHERE...A portion of central Pennsylvania. * WHEN...From late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Those with agricultural interests should protect sensitive vegetation. Freezing temperatures could kill crops and other sensitive vegetation.
Freeze Watch issued April 19 at 1:11AM EDT until April 21 at 9:00AM EDT by NWS Mount Holly NJ
Effective: Sun April 19, 2026, 1:11 AM
Expires: Sun April 19, 2026, 4:00 PM
* WHAT...Sub-freezing temperatures as low as 30 possible, mainly outside of the urban city centers. * WHERE...In Delaware, New Castle County. In Pennsylvania, Delaware and Philadelphia Counties. * WHEN...From late Monday night through Tuesday morning. * IMPACTS...Frost and freeze conditions could kill crops, other sensitive vegetation and possibly damage unprotected outdoor plumbing.
Take steps now to protect tender plants from the cold.
Weather Forecast
Air Quality
Nitrogen Dioxide: 6.9 μg/m3
Sulphur Dioxide: 2.55 μg/m3
Ozone: 77.32 μg/m3
Astronomical
Sun Transit: 1:01 PM
Sunset: 7:45 PM
Daylight: 13 hrs 28 mins
Moon Transit: 3:04 PM
Moonset: 11:04 PM
Moon Phase: Waxing Crescent
Moon Illumination: 4.9%
Best Times for Fishing or Hunting
Major Periods
4:04 AM - 6:34 AM2:34 PM - 5:04 PM
Minor Periods
12:00 AM - 12:00 AM6:44 AM - 8:14 AM
Action Rating: 4 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.84 μg/m3
Sulphur Dioxide: 3.29 μg/m3
Ozone: 84.92 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:46 PM
Daylight: 13 hrs 30 mins
Moon Transit: 4:08 PM
Moonset: 12:04 AM
Moon Phase: Waxing Crescent
Moon Illumination: 10.8%
Best Times for Fishing or Hunting
Major Periods
5:07 AM - 7:37 AM3:38 PM - 6:08 PM
Minor Periods
7:33 AM - 9:03 AM12:00 AM - 12:00 AM
Action Rating: 2 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 4.9 μg/m3
Sulphur Dioxide: 3.19 μg/m3
Ozone: 88.56 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:47 PM
Daylight: 13 hrs 33 mins
Moon Transit: 5:13 PM
Moonset: 12:18 AM
Moon Phase: Waxing Crescent
Moon Illumination: 18.8%
Best Times for Fishing or Hunting
Major Periods
6:12 AM - 8:42 AM4:43 PM - 7:13 PM
Minor Periods
8:34 AM - 10:04 AM12:00 AM - 12:00 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 9.96 μg/m3
Sulphur Dioxide: 4.82 μg/m3
Ozone: 82.52 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:48 PM
Daylight: 13 hrs 35 mins
Moon Transit: 6:15 PM
Moonset: 1:20 AM
Moon Phase: Waxing Crescent
Moon Illumination: 28.4%
Best Times for Fishing or Hunting
Major Periods
7:16 AM - 9:46 AM5:45 PM - 8:15 PM
Minor Periods
9:44 AM - 11:14 AM12:50 AM - 2:20 AM
Action Rating: 3 out of 5
Weather Forecast
Air Quality
Nitrogen Dioxide: 17.63 μg/m3
Sulphur Dioxide: 11.27 μg/m3
Ozone: 65.69 μg/m3
Astronomical
Sun Transit: 1:00 PM
Sunset: 7:50 PM
Daylight: 13 hrs 38 mins
Moon Transit: 7:13 PM
Moonset: 2:09 AM
Moon Phase: First Quarter
Moon Illumination: 39.1%
Best Times for Fishing or Hunting
Major Periods
8:16 AM - 10:46 AM6:43 PM - 9:13 PM
Minor Periods
10:58 AM - 12:28 AM1:39 AM - 3:09 AM
Action Rating: 2 out of 5