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Allentown weather live forecast
Today's maximum temperature in Allentown is expected to be 35°C. Select a day from the live weather forecast for Allentown, Pennsylvania, USA for more weather parameters.
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Wednesday
30th Jul -
Thursday
31st Jul -
Friday
1st Aug -
Saturday
2nd Aug -
Sunday
3rd Aug
5-day weather forecast updated at 04:01 on Wednesday 30th July 2025 GMT
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Recommended for Pennsylvania
The 5-day weather forecast for Pennsylvania (Allentown) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.
Allentown weather forecast by day
Below are the detailed weather forecasts for Allentown for the next 5 days.
Allentown weather for Wednesday 30th July 2025
Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 35°C, high levels of heat & humidity, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 10 kph from the west.
- °C maximum temperature
- °C minimum temperature
- scattered clouds
- hours of sunshine
- UV index (Very High)
- mm of rainfall expected
- high heat & humidity
- kph wind from W
Allentown weather for Thursday 31st July 2025
Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 4 (Moderate) and 5 hours of bright sunshine. There are 10-20 mm of rainfall expected with 97% chance of some rain and a gentle breeze of 13 kph from the north-east.
- °C maximum temperature
- °C minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (Moderate)
- % chance of some rain
- mm of rainfall expected
- low heat & humidity
- kph wind from NE
Allentown weather for Friday 1st August 2025
Expect isolated thunderstorms in Allentown, Pennsylvania with a maximum temperature of 22°C, maximum UV of 7 (High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 67% chance of some rain and a gentle breeze of 17 kph from the north-east.
- °C maximum temperature
- °C minimum temperature
- isolated thunderstorms
- hours of sunshine
- UV index (High)
- % chance of some rain
- mm of rainfall expected
- °C wind chill
- kph wind from NE
Allentown weather for Saturday 2nd August 2025
Expect sunshine and showers in Allentown, Pennsylvania with a maximum temperature of 26°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 11 hours of bright sunshine. There are 0-2 mm of rainfall expected with 3% chance of some rain and a gentle breeze of 13 kph from the north-east.
- °C maximum temperature
- °C minimum temperature
- sunshine and showers
- hours of sunshine
- UV index (Very High)
- % chance of some rain
- mm of rainfall expected
- low heat & humidity
- kph wind from NE
Allentown weather for Sunday 3rd August 2025
Expect scattered clouds in Allentown, Pennsylvania with a maximum temperature of 27°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 10 hours of bright sunshine. There are 0 mm of rainfall expected and little or no wind of 6 kph from the north.
- °C maximum temperature
- °C minimum temperature
- scattered clouds
- hours of sunshine
- UV index (Very High)
- mm of rainfall expected
- low heat & humidity
- kph wind from N
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Metric (°C / mm) | Imperial (°F / inches)
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