Cheswick, PA Weather Forecast | 5 Day
Updated: Mon Aug 31st 2026 7:30 AM EDT
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Overcast
Mon 8-31-26
Overcast with a high of 79°F and a low of 67°F. It will likey rain, having a 79% chance of a downpour with an estimated 0.1in. Winds will be light at 4mph and gusts of 12.1mph at 11 PM. High humidity with average of 85% is anticipated, the maximum being 95% at 8 AM and 59% being its lowest at 2 PM. Barometric pressure is its highest of 30.13inHg at 11 AM, a lowest point of 30.04inHg at 7 PM with an avg 30.08inHg.
- HI: 79°F
- LO: 67°F
- Rainfall: 79% | est. 0.1in
- Snowfall: 0%
- Wind
4 mph - Humidity
85% avg. - UV Index
3.9 - Air QualityGood
- Sunrise
06:45 AM - Sunset
07:53 PM - Moonrise
09:16 PM - Moonset
10:21 AM - Moon Phase
Waning Gibbous
Overcast
Weather Tomorrow, Tue 9-1-26
Overcast with a high of 86°F and a low of 71°F. There might be light rainfall having a 20% chance. Winds will be light at 10mph and gusts of 18.4mph at 6 PM. The humidity will be on the higher side, averaging about 78%, the maximum being 94% at 12 AM and 49% being its lowest at 3 PM. Barometric pressure is its highest of 30.06inHg at 9 AM, a lowest point of 29.97inHg at 7 PM with an avg 30.02inHg.
- HI: 86°F
- LO: 71°F
- Rainfall: 20%
- Snowfall: 0%
- Wind
9.2 mph - Humidity
78% avg. - UV Index
3.7 - Air QualityGood
- Sunrise
06:46 AM - Sunset
07:52 PM - Moonrise
09:42 PM - Moonset
11:27 AM - Moon Phase
Waning Gibbous
Sunny
Wed 9-2-26
Sunny with a high of 90°F and a low of 72°F. There's a very small chance of rainfall, only about 8%. Wind will be moderate, blowing around 11mph on average and gusts of 20.6mph at 4 AM. The humidity will be on the higher side, averaging about 71%, the maximum being 92% at 7 AM and 45% being its lowest at 4 PM. Barometric pressure is its highest of 30.04inHg at 8 AM, a lowest point of 29.94inHg at 7 PM with an avg 29.99inHg.
- HI: 90°F
- LO: 72°F
- Rainfall: 8%
- Snowfall: 0%
- Wind
11 mph - Humidity
71% avg. - UV Index
8 - Air QualityGood
- Sunrise
06:47 AM - Sunset
07:50 PM - Moonrise
10:13 PM - Moonset
12:35 PM - Moon Phase
Last Quarter
Sunny
Thu 9-3-26
Sunny with a high of 87°F and a low of 70°F. It will likey rain, having a 80% chance of a downpour with an estimated 0.33in. Wind will be moderate, blowing around 11mph on average and gusts of 21.3mph at 8 AM. The humidity will be on the higher side, averaging about 80%, the maximum being 97% at 8 AM and 52% being its lowest at 4 PM. Barometric pressure is its highest of 30.01inHg at 9 AM, a lowest point of 29.87inHg at 6 PM with an avg 29.94inHg.
- HI: 87°F
- LO: 70°F
- Rainfall: 80% | est. 0.33in
- Snowfall: 0%
- Wind
11 mph - Humidity
80% avg. - UV Index
7.5 - Air QualityGood
- Sunrise
06:48 AM - Sunset
07:48 PM - Moonrise
10:53 PM - Moonset
01:46 PM - Moon Phase
Last Quarter
Fog
Fri 9-4-26
Fog with a high of 82°F and a low of 65°F. It will likey rain, having a 84% chance of a downpour with an estimated 0.59in. Winds will be light at 4mph and gusts of 11.6mph at 1 AM. High humidity with average of 83% is anticipated, the maximum being 98% at 11 PM and 38% being its lowest at 1 PM. Barometric pressure is its highest of 30.02inHg at 9 AM, a lowest point of 29.88inHg at 5 PM with an avg 29.95inHg.
- HI: 82°F
- LO: 65°F
- Rainfall: 84% | est. 0.59in
- Snowfall: 0%
- Wind
4 mph - Humidity
83% avg. - UV Index
6 - Air QualityGood
- Sunrise
06:49 AM - Sunset
07:47 PM - Moonrise
11:44 PM - Moonset
02:55 PM - Moon Phase
Last Quarter
Sunny
Sat 9-5-26
Sunny with a high of 74°F and a low of 59°F. There's a very small chance of rainfall, only about 9%. Winds will be light at 7mph and gusts of 16.9mph at 11 PM. The humidity will be on the higher side, averaging about 75%, the maximum being 98% at 2 AM and 41% being its lowest at 5 PM. Barometric pressure is its highest of 30.01inHg at 11 PM, a lowest point of 29.92inHg at 5 PM with an avg 29.94inHg.
- HI: 74°F
- LO: 59°F
- Rainfall: 9%
- Snowfall: 0%
- Wind
6.5 mph - Humidity
75% avg. - UV Index
6 - Air QualityTBA
- Sunrise
06:50 AM - Sunset
07:45 PM - Moonrise
Does not rise today - Moonset
03:59 PM - Moon Phase
Waning Crescent
This 5-Day weather forecast is valid for ZIP code 15024, accurately covering the area of Cheswick, PA.
Currently
 |
67°F |
30.09 inHg.
Barometer 93%
Humidity S 4 mph Wind |
| Light Drizzle | ||
National Outlook
Heavy Rain Expected in the Southwest and Central Rockies 08-30 to 09-01
Sun Aug 30th 2026, 5:14am PDT
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