318 AWUS81 KCTP 230911 RWSCTP PAZ004>006-010>012-017>019-024>028-033>037-041-042-045-046- 049>053-056>059-063>066-232315- Regional Weather Summary National Weather Service State College PA 511 AM EDT Sun Aug 23 2026 A deepening, unseasonably strong upper level low will pass just north of the Commonwealth on Monday. Two distinct, embedded troughs rotating around the base of the parent upper low will bring a few periods of showers and isolated to scattered thunderstorms that could produce brief gusty winds and small hail this afternoon and early this evening. The greatest chance for precipitation will come this afternoon and tonight and will be focused mainly across Northwest and North- Central PA. High temperatures today will range from the upper 60s to lower 70s across the Northern and Western Mountains, to the lower 80s across the southeast. Lows tonight will be quite cool and only in the upper 40s to low 50s respectively across the Northern Mountains and Laurel Highlands, with mid to upper 50s across much of the remainder of Central and Southern PA. Additional, scattered showers and isolated thunderstorms will occur on Monday, mainly in the afternoon and early evening. High temperatures will trend cooler by several degrees from today to Monday. Mainly dry conditions with a slow warmup and comfortably low daytime humidity will occur Tuesday through Thursday. $$ Lambert  466 AWUS83 KBIS 230941 RWSBIS NDZ001>005-009-010-012-013-017>020-022-023-025-031>033-035>037- 040>044-046>048-050-051-055>062-231745- North Dakota State Weather Summary National Weather Service Bismarck ND 441 AM CDT Sun Aug 23 2026 /341 AM MDT Sun Aug 23 2026/ Scattered showers and thunderstorms are expected to develop across western and central North Dakota this afternoon and evening. Some storms may be severe, with hail up to the size of ping pong balls, damaging winds up to 70 mph, and brief torrential downpours. On Monday there is a lower chance of isolated thunderstorms in central and eastern North Dakota, which could also be severe. Temperatures are generally favored to remain near average through next week. The Detailed Forecast for North Dakota... .TODAY...Partly to mostly cloudy. Breezy with a chance of showers and thunderstorms west and central. Highs from the upper 70s northeast to near 90 far southwest. .TONIGHT...Mostly cloudy. Chance of showers and thunderstorms. Lows in the mid 50s to lower 60s. .MONDAY...Partly to mostly sunny. Breezy west. Chance of showers and thunderstorms central and east. Highs in the 80s. .TUESDAY...Partly to mostly sunny. Windy. Slight chance of showers far north central and northeast. Lows in the mid 50s to lower 60s. Highs in the mid 70s to mid 80s. $$ MH