🇺🇸 Allentown vs 🇬🇧 London
Weather Comparison
Current Weather Right Now
🇺🇸
Allentown

55°F
Scattered Clouds
Feels like 53°F
H 56°F / L 52°F
Humidity: 66%
🇬🇧
London

48°F
Overcast Clouds
Feels like 44°F
H 50°F / L 45°F
Humidity: 55%
Climate Overview
Allentown
Allentown in the Lehigh Valley south of the Blue Mountain Ridge has a sheltered climate with less precipitation than the coastal plain. The Blue Mountain blocks some northwesterly cold air creating slightly milder conditions. The Lehigh River creates valley humidity and the dense urban core has significant heat island effects.
London
Temperate oceanic — mild, cloudy, and notoriously changeable year-round
London's weather is famously mild but grey. It rarely gets very hot or very cold, but expect cloud cover most of the year. Summer (June–August) brings the best sunshine and warmth. Rain falls year-round but rarely in heavy bursts.
Seasonal Comparison
| Season | 🇺🇸 Allentown | 🇬🇧 London |
|---|---|---|
| Spring | — | 45–61°F March–May |
| Summer | — | 63–73°F June–August |
| Fall | — | 49–61°F September–November |
| Winter | — | 38–46°F December–February |
Allentown vs London: Frequently Asked Questions
Does Allentown or London have better weather?
Allentown and London have very different climates. Allentown in the Lehigh Valley south of the Blue Mountain Ridge has a sheltered climate with less pr London: Temperate oceanic — mild, cloudy, and notoriously changeable year-round. The best city depends on your preferred season and temperature range.
When is the best time to visit Allentown vs London?
Best time for Allentown: spring and fall. Best time for London: June, July, August, September.