Smoke and Heat Hold over Northern Rockies as Trough Promises Late‑Week Storms

Overview

• Early this week, hazy skies from regional wildfire smoke continue across much of Montana and northern Wyoming with air quality alerts in place and health officials urging people to limit outdoor exertion.
• Hot, dry weather persists through Tuesday with highs generally in the mid‑80s to mid‑90s and low afternoon humidity that keeps fire‑weather concerns elevated in many valleys and mountain zones.
• Forecasts from local National Weather Service offices and TV meteorology teams show a pattern change beginning late Wednesday into Thursday as a Gulf of Alaska trough brings increasing moisture and the first real chance of showers and thunderstorms.
• Confidence in how much rain falls is limited because the trough’s exact strength and track remain uncertain, meaning outcomes range from widespread wetting rains that cut smoke to weaker, spotty showers that leave smoky conditions in place.
• Late‑week storms could bring locally heavy rain and gusty winds that help some fires but also raise risks of runoff or flooding below burn scars, and the active pattern with variable smoke levels may continue into the following weekend.