Bethlehem Weather Forecast
- 34
- 59
Mostly Cloudy
- 35
- 57
Mostly Cloudy
- 38
- 57
Mostly Cloudy
- 41
- 58
Chance Rain Showers
- 45
- 55
Chance Rain Showers
- 42
- 56
Slight Chance Rain Showers
Today 26 Oct Northampton
Mostly sunny. Highs in the upper 50s. North Winds around 5 Mph.
Tonight 26 Oct Northampton
Mostly clear. Lows in the mid 30s. North Winds around 5 Mph.
Bethlehem Temperature Statistics
October Temperature
Allentown, Lehigh Valley International Airport (4.3 miles)
Lowest 10 October, 2025
33.1 °FAverage October
56.6 °FHighest 5 October, 2025
84 °F
Climate (2020–Present)
Allentown, Lehigh Valley International Airport (4.3 miles)
Average Low 2020–2025
43.8 °FAverage 2020–2025
53.8 °FAverage High 2020–2025
63.6 °F