Overview
- Forecasters single out Saturday as the main trouble spot for plans in the Midwest and Ohio Valley, with the Storm Prediction Center putting Chicago under a marginal severe risk that includes gusty winds and hail.
- Cleveland and Cincinnati outlooks call for scattered showers and thunderstorms over the weekend, then a quick surge to summerlike highs with stronger storm chances as a midweek cold front approaches.
- New England turns from a bright weekend to a brief early‑week heat burst, with several forecasts pointing to highs near 90 degrees on Tuesday and a return of thunderstorms by midweek.
- Out West, Las Vegas sits near 100 degrees and faces a High Wind Watch with potential 45 mph gusts, and local air quality is flagged as unhealthy for sensitive groups due to ozone.
- Northern Rockies locales buck the warmth, as Montana stays cool and unsettled with rain mixing with snow in some lower elevations and several inches of mountain snow expected.