Bethlehem Weather Forecast
- 29
- 67
Rain Showers
- 22
- 39
Partly Sunny
- 26
- 40
Mostly Cloudy
- 33
- 49
Partly Sunny
- 37
- 55
Slight Chance Rain
Today 16 Mar Northampton
A chance of Showers and Thunderstorms in the Morning, then Showers with a chance of Thunderstorms in the afternoon. Some Thunderstorms may be severe with damaging Winds in the afternoon. Much warmer with Highs in the mid 60s. Southeast Winds around 10 Mph with Gusts up to 20 Mph, becoming south 15 to 20 Mph with Gusts up to 30 Mph in the afternoon. Chance of rain 90 percent.
Tonight 16 Mar Northampton
Rain Showers with a chance of Thunderstorms in the Evening, then rain Showers, a chance of snow Showers and sleet after midnight. Some Thunderstorms may be severe with damaging Winds. Colder with Lows in the upper 20s. Southwest Winds 15 to 20 Mph, becoming west after midnight. Gusts up to 35 Mph. Chance of precipitation near 100 percent.
Bethlehem Temperature Statistics
March Temperature
Allentown, Lehigh Valley International Airport (4.3 miles)
Lowest 2 March, 2026
16.6 °FAverage March
43.6 °FHighest 10 March, 2026
80.1 °F
Climate (2021–Present)
Allentown, Lehigh Valley International Airport (4.3 miles)
Average Low 2021–2026
43.5 °FAverage 2021–2026
53.6 °FAverage High 2021–2026
63.4 °F