Bethlehem, PA Weather Forecast | 5 Day
Updated: Mon Aug 31st 2026 12:15 PM EDT
Ask About Weather
Test our newly developed Weather Chatbot. It provides up to 10 days of forecast information!
Light Drizzle
Mon 8-31-26
Light Drizzle with a high of 80°F and a low of 66°F. It will likey rain, having a 83% chance of a downpour with an estimated 0.19in. Winds will be light at 10mph and gusts of 14.8mph at 5 PM. High humidity with average of 81% is anticipated, the maximum being 85% at 7 PM and 58% being its lowest at 2 PM. Barometric pressure is its highest of 30.09inHg at 1 PM, a lowest point of 30.05inHg at 6 PM with an avg 30.07inHg.
- HI: 80°F
- LO: 66°F
- Rainfall: 83% | est. 0.19in
- Snowfall: 0%
- Wind
9.6 mph - Humidity
81% avg. - UV Index
7.3 - Air QualityGood
- Sunrise
06:27 AM - Sunset
07:35 PM - Moonrise
08:57 PM - Moonset
10:03 AM - Moon Phase
Waning Gibbous
Partly Cloudy
Weather Tomorrow, Tue 9-1-26
Partly Cloudy with a high of 87°F and a low of 66°F. Rainfall expected to have a 69% chance with an estimated 0.07in. Wind will be moderate, blowing around 11mph on average and gusts of 17.2mph at 4 PM. The humidity will be on the higher side, averaging about 80%, the maximum being 96% at 11 PM and 52% being its lowest at 2 PM. Barometric pressure is its highest of 30.06inHg at 1 AM, a lowest point of 29.95inHg at 6 PM with an avg 30.01inHg.
- HI: 87°F
- LO: 66°F
- Rainfall: 69% | est. 0.07in
- Snowfall: 0%
- Wind
10.1 mph - Humidity
80% avg. - UV Index
7 - Air QualityGood
- Sunrise
06:28 AM - Sunset
07:34 PM - Moonrise
09:23 PM - Moonset
11:08 AM - Moon Phase
Waning Gibbous
Light Rain Shower
Wed 9-2-26
Light Rain Shower with a high of 90°F and a low of 68°F. It will likey rain, having a 87% chance of a downpour with an estimated 0.37in. Winds will be light at 9mph and gusts of 16.4mph at 6 PM. High humidity with average of 87% is anticipated, the maximum being 99% at 4 AM and 54% being its lowest at 4 PM. Barometric pressure is its highest of 30.04inHg at 9 PM, a lowest point of 29.88inHg at 5 PM with an avg 29.99inHg.
- HI: 90°F
- LO: 68°F
- Rainfall: 87% | est. 0.37in
- Snowfall: 0%
- Wind
8.5 mph - Humidity
87% avg. - UV Index
3 - Air QualityGood
- Sunrise
06:29 AM - Sunset
07:32 PM - Moonrise
09:55 PM - Moonset
12:17 PM - Moon Phase
Last Quarter
Light Rain Shower
Thu 9-3-26
Light Rain Shower with a high of 85°F and a low of 68°F. It will likey rain, having a 86% chance of a downpour with an estimated 0.26in. Wind will be moderate, blowing around 11mph on average and gusts of 21.7mph at 7 PM. High humidity with average of 87% is anticipated, the maximum being 99% at 4 AM and 62% being its lowest at 3 PM. Barometric pressure is its highest of 29.97inHg at 12 AM, a lowest point of 29.84inHg at 5 PM with an avg 29.9inHg.
- HI: 85°F
- LO: 68°F
- Rainfall: 86% | est. 0.26in
- Snowfall: 0%
- Wind
10.1 mph - Humidity
87% avg. - UV Index
6.3 - Air QualityGood
- Sunrise
06:30 AM - Sunset
07:31 PM - Moonrise
10:35 PM - Moonset
01:27 PM - Moon Phase
Last Quarter
Overcast
Fri 9-4-26
Overcast with a high of 83°F and a low of 63°F. There might be light rainfall having a 12% chance with an estimated 0in. Wind will be moderate, blowing around 12mph on average and gusts of 17.7mph at 3 PM. The humidity will be on the higher side, averaging about 68%, the maximum being 89% at 2 AM and 48% being its lowest at 2 PM. Barometric pressure is its highest of 29.94inHg at 9 AM, a lowest point of 29.84inHg at 5 PM with an avg 29.89inHg.
- HI: 83°F
- LO: 63°F
- Rainfall: 12% | est. 0in
- Snowfall: 0%
- Wind
11.9 mph - Humidity
68% avg. - UV Index
7 - Air QualityGood
- Sunrise
06:31 AM - Sunset
07:29 PM - Moonrise
11:25 PM - Moonset
02:36 PM - Moon Phase
Last Quarter
Sunny
Sat 9-5-26
Sunny with a high of 75°F and a low of 56°F. There's a very small chance of rainfall, only about 6%. Wind will be moderate, blowing around 13mph on average and gusts of 15.5mph at 11 AM. The humidity will be on the higher side, averaging about 68%, the maximum being 87% at 11 PM and 45% being its lowest at 2 PM. Barometric pressure is its highest of 29.94inHg at 11 PM, a lowest point of 29.88inHg at 3 PM with an avg 29.9inHg.
- HI: 75°F
- LO: 56°F
- Rainfall: 6%
- Snowfall: 0%
- Wind
12.3 mph - Humidity
68% avg. - UV Index
6 - Air QualityTBA
- Sunrise
06:32 AM - Sunset
07:27 PM - Moonrise
Does not rise today - Moonset
03:40 PM - Moon Phase
Waning Crescent
This 5-Day weather forecast is relevant for ZIP codes from 18015 through 18025, accurately covering all areas within Bethlehem, PA.
Currently
|
77°F |
30.1 inHg.
Barometer 70%
Humidity S 4 mph Wind |
| Light Drizzle | ||
National Outlook
Heavy Rain and Thunderstorms to Impact Great Basin and Gulf Coast 08-31 to 09-02
Mon Aug 31st 2026, 7:09am PDT
Read
Extreme Heat & Weather Changes Ahead | 09-03 to 09-07
Extended Forecast
Mon Aug 31st 2026, 7:12am PDT
Read
Mon Aug 31st 2026, 7:12am PDT
5 Day Forecast Nearby
More Local Information
Bookmark and Share
