Allegheny County (Pittsburgh)
Tomorrow
Tomorrow weather in Allegheny County
Sunday, September 20th, 2026
23°
Patchy rain possible
Low 17°
The weather tomorrow in Allegheny County will be similar like today, with max temperatures of 22°.
The rain will visit again tomorrow in Allegheny County and the expected precipitation are 3 mm.
23° / 17°
Temp
84%
Rain
11 km/h
Wind
90%
Humidity
Allegheny County Weather Pages
Allegheny County hourly forecast for tomorrow
Scroll right to see more weather forecasts for Allegheny County tomorrow
| 12:00 AM | 01:00 AM | 02:00 AM | 03:00 AM | 04:00 AM | 05:00 AM | 06:00 AM | 07:00 AM | 07:05 AM | 08:00 AM | 09:00 AM | 10:00 AM | 11:00 AM | 12:00 PM | 01:00 PM | 02:00 PM | 03:00 PM | 04:00 PM | 05:00 PM | 06:00 PM | 07:00 PM | 07:21 PM | 08:00 PM | 09:00 PM | 10:00 PM | 11:00 PM | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  |  | | | | | | |  |  | | | | | | | | | |  | |  | | | | | Next |
| temperatures | 21.3° | 21.2° | 20.5° | 20° | 19.5° | 19.3° | 19.3° | 19° | Sunrise | 18.6° | 18.4° | 18.5° | 19.4° | 18.9° | 18.7° | 19.8° | 21° | 22.7° | 21.5° | 20.2° | 20.3° | Sunset | 19.6° | 18.3° | 17.5° | 16.7° | |
| Feels like | 23.3° | 23.5° | 22.7° | 22° | 21.1° | 21.3° | 21.1° | 21° | 20.3° | 19.9° | 19.9° | 20.5° | 20.4° | 20.5° | 21.2° | 22.4° | 23.8° | 22.8° | 21.6° | 22.4° | 21.7° | 19.5° | 17.8° | 16.7° | |||
| wind speed | 5 km/h | 3 km/h | 3 km/h | 3 km/h | 4 km/h | 3 km/h | 5 km/h | 4 km/h | 5 km/h | 5 km/h | 6 km/h | 9 km/h | 8 km/h | 6 km/h | 9 km/h | 10 km/h | 10 km/h | 8 km/h | 7 km/h | 5 km/h | 7 km/h | 8 km/h | 11 km/h | 10 km/h | |||
| wind degree | 163° | 192° | 248° | 221° | 204° | 196° | 181° | 210° | 182° | 208° | 204° | 228° | 223° | 210° | 240° | 262° | 289° | 316° | 326° | 346° | 351° | 21° | 43° | 25° | |||
| wind direction | SSE | SSW | WSW | SW | SSW | SSW | S | SSW | S | SSW | SSW | SW | SW | SSW | WSW | W | WNW | NW | NNW | NNW | N | NNE | NE | NNE | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0.2 mm | 0 mm | 0 mm | 0.1 mm | 0 mm | 0.1 mm | 0.1 mm | 0.2 mm | 0.1 mm | 0 mm | 0.1 mm | 0.2 mm | 0 mm | 0.1 mm | 0 mm | 0.1 mm | 0.2 mm | 0.8 mm | 0.7 mm | 0.5 mm | |||
| chance for rain | 28% | 24% | 26% | 26% | 41% | 33% | 28% | 44% | 41% | 41% | 43% | 46% | 52% | 43% | 44% | 36% | 16% | 33% | 27% | 35% | 48% | 72% | 70% | 67% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 83% | 83% | 84% | 84% | 87% | 89% | 92% | 94% | 94% | 94% | 94% | 92% | 96% | 97% | 94% | 89% | 77% | 81% | 87% | 90% | 97% | 97% | 97% | 97% | |||
| dew point | 18.4° | 18.2° | 17.7° | 17.3° | 17.2° | 17.5° | 18° | 18° | 17.6° | 17.3° | 17.6° | 18.1° | 18.3° | 18.3° | 18.9° | 19.1° | 18.5° | 18.2° | 17.9° | 18.6° | 19.1° | 17.9° | 17° | 16.2° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 2 km | 10 km | 2 km | 10 km | 2 km | 0 km | 2 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 98% | 96% | 99% | 100% | 100% | 100% | 89% | 100% | 100% | 100% | 100% | 100% | 100% | 100% | 81% | 61% | 68% | 100% | 100% | 100% | 98% | 99% | 99% | 100% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.3 | 0.4 | 1.1 | 3 | 0.7 | 1 | 0.8 | 1.3 | 0.3 | 0.2 | 0 | 0 | 0 | 0 | 0 |
Weather in Allegheny County tomorrow
The weather in Allegheny County tomorrow is expected to be noticeably cooler than usual, with a forecast temperature of 23 °F, compared to an average of 26 °F for September 20th in recent years.
temperatures
23 °F
rain
3.5 mm
wind
11 km/h
UV
Moderate
🌫️ Air quality, UV & pollen - Allegheny County Live AQI, UV index and pollen levels. Air Quality →
Allegheny County daylight overview ☀️
Tomorrow in Allegheny County, The sun rises at 07:05 and sets at 19:21, giving a total daylight duration of 12 hours and 16 minutes.
Top locations in Allegheny County
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What to wear tomorrow in Allegheny County? clothing recommendations
Stay comfortably stylish - your tailored guide for tomorrow's Allegheny County forecast.
Long-sleeve shirt
Long pant
Closed-toe shoes
Light jacket
Umbrella
The weather tomorrow in Allegheny County - FAQ
What is the maximum temperature for tomorrow in Allegheny County?
The maximum temperature for tomorrow in Allegheny County is expected to be 23° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain tomorrow in Allegheny County? 🌧️
Yes, there is a 84% chance of rain in Allegheny County tomorrow. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed tomorrow in Allegheny County? 🌀
The wind in Allegheny County is expected to blow at 11 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Allegheny County tomorrow?
Given the forecast of 23 °F with a 84% chance of rain, we advise checking our "What to wear tomorrow" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Allegheny County tomorrow.
What is the sunrise and sunset time for Allegheny County tomorrow?
The sun is expected to rise at 07:05 and set at 19:21 in Allegheny County.
How accurate is the weather forecast Allegheny County tomorrow? ✅
Allegheny County weather forecast for tomorrow is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is Allegheny County?Get accurate weather forecasts for Allegheny County, located at latitude 40.441 and longitude -79.996. Stay updated with localized weather information tailored for Allegheny County.
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