Arnold, PA Weather Forecast
Westmoreland County, Pennsylvania
Live radar, warnings and storm tracking for Arnold, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for Arnold
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
Arnold, PA at a glance
Arnold is home to about 4,676 people in Westmoreland County, across 0.7 square miles. It ranks 567th by population of 970 places in Pennsylvania with a forecast here. The nearest neighbour with its own forecast is New Kensington, 1 miles away.
- County
- Westmoreland County
- Population
- 4,676 2023 est.
- Land area
- 0.7 sq mi
- People per sq mi
- 6,388
- Forecast point
- 40.5789°N, 79.7653°W
How well can the network see Arnold?
The nearest Doppler radar is KPBZ (Pittsburgh, PA), to the W. Its lowest scan passes about 1,400 ft above Arnold. That is about as close as US radar coverage gets: low-level rotation and gust fronts over Arnold show up clearly. Arnold is closer to its radar than 79% of US cities.
The closest weather station is KBTP (Pittsburgh/Butler Rgnl). Far enough that current conditions for Arnold are a reading from somewhere else.
Forecasts near Arnold
- New Kensington, PA1 mi
- Tarentum, PA2 mi
- Brackenridge, PA2 mi
- Lower Burrell, PA2 mi
- Springdale, PA3 mi
- Harrison, PA5 mi
- Harmar, PA5 mi
- Plum, PA5 mi
Elsewhere in Pennsylvania
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