10-day forecast for Bethlehem, NJ: 55° to 90°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
90°
Best day: Tuesday, August 11
70° · 0.13 in
Worst day: Tuesday, August 18
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1088° / 72°0
Morning75°feels 76°
Afternoon87°feels 92°
Evening77°feels 78°
Overnight72°feels 73°
88 °
Bethlehem, Monday, 10 August
Clear. High 88°, low 72°.
Pressure30.00 inHg
Wind7.6 mph W
Humidity47%
Visibility6.2 mi
Dew point64°
Tue, 1190° / 70°0
Morning74°feels 75°
Afternoon89°feels 90°
Evening78°feels 79°
Overnight72°feels 73°
90 °
Bethlehem, Tuesday, 11 August
Overcast. High 90°, low 70°.
Pressure29.88 inHg
Wind5.7 mph NW
Humidity50%
Visibility6.2 mi
Dew point65°
Wed, 1285° / 69°0.12
Morning72°feels 73°
Afternoon85°feels 87°
Evening72°feels 73°
Overnight70°feels 71°
85 °
Bethlehem, Wednesday, 12 August
Rain. High 85°, low 69°.
Pressure29.71 inHg
Wind8.9 mph W
Humidity67%
Visibility6.2 mi
Dew point67°
Thu, 1383° / 61°0.02
Morning73°feels 74°
Afternoon80°feels 80°
Evening67°feels 67°
Overnight63°feels 62°
83 °
Bethlehem, Thursday, 13 August
Light rain. High 83°, low 61°.
Pressure29.80 inHg
Wind11.3 mph NW
Humidity38%
Visibility—
Dew point53°
Fri, 1478° / 55°0
Morning65°feels 64°
Afternoon75°feels 74°
Evening69°feels 68°
Overnight64°feels 63°
78 °
Bethlehem, Friday, 14 August
Clear. High 78°, low 55°.
Pressure30.00 inHg
Wind8.2 mph W
Humidity35%
Visibility—
Dew point45°
Sat, 1580° / 55°0
Morning67°feels 66°
Afternoon77°feels 77°
Evening66°feels 65°
Overnight60°feels 59°
80 °
Bethlehem, Saturday, 15 August
Clear. High 80°, low 55°.
Pressure30.12 inHg
Wind10.8 mph NW
Humidity36%
Visibility—
Dew point48°
Sun, 1681° / 55°0
Morning66°feels 65°
Afternoon78°feels 77°
Evening66°feels 65°
Overnight60°feels 60°
81 °
Bethlehem, Sunday, 16 August
Partly cloudy. High 81°, low 55°.
Pressure30.15 inHg
Wind5.3 mph N
Humidity30%
Visibility—
Dew point44°
Mon, 1778° / 57°0.06
Morning68°feels 68°
Afternoon76°feels 76°
Evening66°feels 67°
Overnight65°feels 66°
78 °
Bethlehem, Monday, 17 August
Light rain. High 78°, low 57°.
Pressure30.09 inHg
Wind7 mph S
Humidity58%
Visibility—
Dew point60°
Tue, 1870° / 64°0.13
Morning66°feels 67°
Afternoon68°feels 68°
Evening67°feels 67°
Overnight66°feels 66°
70 °
Bethlehem, Tuesday, 18 August
Light rain. High 70°, low 64°.
Pressure30.09 inHg
Wind7.4 mph SE
Humidity89%
Visibility—
Dew point64°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Bethlehem, NJ around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.