Allentown, Pennsylvania Weather Forecast
Today in Allentown: clear skies with a high near 67°F and a low around 51°F. Rain chance 2%. Best chance of rain is Friday at 76%. Cooling trend: highs fall from 67°F today to 58°F by Sunday.
Forecast updated 2:05 PM EDT, Oct 15
Active Weather Alerts
7-Day Forecast for Allentown
Today 10/15
67°/51°
2%
Fri 10/16
77°/56°
76%
Sat 10/17
59°/40°
13%
Sun 10/18
58°/35°
2%
Mon 10/19
63°/38°
6%
Tue 10/20
67°/42°
6%
Wed 10/21
67°/46°
3%
Next 24 Hours
| Now | 4 PM | 5 PM | 6 PM | 7 PM | 8 PM | 9 PM | 10 PM | 11 PM | Fri12 AM | 1 AM | 2 AM | 3 AM | 4 AM | 5 AM | 6 AM | 7 AM | 8 AM | 9 AM | 10 AM | 11 AM | 12 PM | 1 PM | 2 PM | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sky | | | | | |  | | | |  | | |  | | |  | | | | | | |  | |
| Temp | 67° | 67° | 66° | 65° | 62° | 60° | 59° | 58° | 58° | 57° | 57° | 56° | 57° | 57° | 57° | 58° | 58° | 60° | 61° | 63° | 65° | 69° | 72° | 75° |
| Rain | 0% | 0% | 0% | 1% | 1% | 1% | 1% | 1% | 2% | 4% | 6% | 12% | 44% | 56% | 48% | 76% | 68% | 37% | 39% | 21% | 14% | 9% | 7% | 6% |
| Wind | ESE 2 | SE 3 | SE 4 | SE 3 | SE 3 | SE 3 | SE 4 | SE 4 | SE 4 | SE 4 | SE 3 | SE 3 | SE 3 | SE 3 | SE 4 | SSE 4 | S 4 | S 4 | S 5 | SSW 6 | SSW 7 | SSW 9 | SW 9 | SW 10 |
Growing Conditions
Growing degree days
3,406
since Apr 1, base 50°F
Rain, last 30 days
2.80 in
model analysis
Rain, year to date
37.07 in
since Jan 1
2-inch soil temperature
67°F
yesterday, daily average
Reference ET, last 7 days
0.69 in
FAO-56 grass reference
Through Oct 14. Season totals use model analysis for this point and update every morning.
Soil, ET and spray tools for Allentown →
Current Stats & Observations
NWS Forecast
About Allentown Weather
Allentown sits at about 256 feet above sea level in Lehigh County, Pennsylvania. About 683,794 people live in the Allentown area. Official forecasts and warnings for the area come from the National Weather Service PHI office, and the nearest NEXRAD radar site is KDIX. The city is in USDA plant hardiness zone 7a, where the coldest winter night typically falls between 0 to 5°F. Over the past ten years the last spring freeze has come around Apr 22 and the first fall freeze around Nov 9.
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