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Allegheny County, PA Weather Forecast
Allegheny County, PA Weather Forecast Dated: 520 AM Mon Aug 24 2026 (Allegheny County Time)
Mon, 24th Lo: 14°C57°F Hi: 23°C74°F |
Chance of showers Monday, temperatures as high as 74°F23°C, low temperature around 57°F14°C, chance of rain 50%, wind out of the W 10 mph16 km/h. Barometric pressure 30 in1016 mb, visibility 6 mi9 km, humidity 72%. |
Tue, 25th Lo: 14°C56°F Hi: 23°C73°F |
Sunny Tuesday, temperatures as high as 73°F23°C, low temperature around 56°F14°C, chance of rain 36%, wind out of the WNW 7 mph11 km/h. Barometric pressure 30.06 in1018 mb, visibility 6 mi10 km, humidity 73%. |
Wed, 26th Lo: 15°C60°F Hi: 25°C78°F |
Overcast Wednesday, temperatures as high as 78°F25°C, low temperature around 60°F15°C, chance of rain 11%, wind out of the ESE 4 mph6 km/h. Barometric pressure 30.03 in1017 mb, visibility 6 mi10 km, humidity 66%. |
| Thu, 27th Lo: 17°C63°F Hi: 29°C84°F |
Sunny Thursday, temperatures as high as 84°F29°C, low temperature around 63°F17°C, chance of rain 57%, wind out of the S 9 mph15 km/h. Barometric pressure 29.91 in1013 mb, visibility 6 mi10 km, humidity 63%. |
| Fri, 28th Lo: 17°C63°F Hi: 26°C79°F |
Sunny Friday, temperatures as high as 79°F26°C, low temperature around 63°F17°C, chance of rain 57%, wind out of the W 11 mph18 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi9 km, humidity 71%. |
| Sat, 29th Lo: 15°C59°F Hi: 26°C79°F |
Sunny Saturday, temperatures as high as 79°F26°C, low temperature around 59°F15°C, chance of rain 6%, wind out of the NNE 4 mph7 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 62%. |
| Sun, 30th Lo: 18°C64°F Hi: 21°C69°F |
Overcast Sunday, temperatures as high as 69°F21°C, low temperature around 64°F18°C, chance of rain 25%, wind out of the ESE 4 mph7 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 75%. |
| Mon, 31st Lo: 19°C66°F Hi: 25°C77°F |
Chance of showers Monday, temperatures as high as 77°F25°C, low temperature around 66°F19°C, chance of rain 75%, wind out of the WSW 9 mph14 km/h. Barometric pressure 29.97 in1015 mb, visibility 5 mi8 km, humidity 83%. |
| Tue, 1st Lo: 18°C64°F Hi: 22°C71°F |
Chance of showers Tuesday, temperatures as high as 71°F22°C, low temperature around 64°F18°C, chance of rain 74%, wind out of the WSW 4 mph6 km/h. Barometric pressure 29.91 in1013 mb, visibility 4 mi7 km, humidity 89%. |
| Wed, 2nd Lo: 18°C64°F Hi: 23°C73°F |
Light rain shower Wednesday, temperatures as high as 73°F23°C, low temperature around 64°F18°C, chance of rain 92%, wind out of the S 7 mph12 km/h. Barometric pressure 29.85 in1011 mb, visibility 5 mi8 km, humidity 95%. |
Thu, 3rd Lo: 17°C63°F Hi: 26°C79°F |
Fog Thursday, temperatures as high as 79°F26°C, low temperature around 63°F17°C, chance of rain 78%, wind out of the NW 8 mph13 km/h. Barometric pressure 29.91 in1013 mb, visibility 4 mi6 km, humidity 82%. |
| Fri, 4th Lo: 17°C63°F Hi: 27°C81°F |
Overcast Friday, temperatures as high as 81°F27°C, low temperature around 63°F17°C, chance of rain 12%, wind out of the NNW 4 mph6 km/h. Barometric pressure 30.09 in1019 mb, visibility 6 mi10 km, humidity 76%. |
| Sat, 5th Lo: 20°C67°F Hi: 27°C80°F |
Overcast Saturday, temperatures as high as 80°F27°C, low temperature around 67°F20°C, chance of rain 81%, wind out of the SSE 6 mph9 km/h. Barometric pressure 29.97 in1015 mb, visibility 6 mi10 km, humidity 80%. |
| Sun, 6th Lo: 20°C68°F Hi: 24°C75°F |
Light rain shower Sunday, temperatures as high as 75°F24°C, low temperature around 68°F20°C, chance of rain 93%, wind out of the SSW 6 mph9 km/h. Barometric pressure 29.94 in1014 mb, visibility 6 mi10 km, humidity 95%. |
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