Conditions to shift from smoke to storms this week
BILLINGS — Hazy skies and lingering wildfire smoke are expected to hang over Billings through Wednesday, but a notable pattern change arriving midweek should help clear the air. An upper-level disturbance moving northeast across southern Montana and northern Wyoming will increase rain chances by late Wednesday afternoon and into Thursday, meteorologists say.
The incoming system will tap abundant monsoonal moisture and combine with southwest flow aloft to trigger widespread shower and thunderstorm activity across the region. While severe weather is not broadly expected across the Billings area, forecasters warn of localized hazards including gusts above 60 mph, large hail and heavy rainfall that could produce flash flooding in vulnerable locations.
"Be prepared!"
The advisory language from local weather analysts explicitly urges caution for residents in and around Billings. The Storm Prediction Center and local offices describe the potential as a Marginal Risk (1 of 5) for severe storms in parts of eastern and southeast Montana, while much of the region carries at least a marginal to slight risk for excessive rainfall at times this week.
Who and where is most at risk
Forecasters singled out recent burn scars and low-lying, flood-prone areas as the locations most vulnerable to rapid runoff and flash flooding if thunderstorms produce intense short-duration rainfall. Models indicate much of the broader region could receive over 0.5 inch of rain, while mountain zones and southeast Montana have potential to exceed 1 inch between Thursday and Friday.
- Timing: Rain chances increase late Wednesday afternoon and remain elevated through Friday.
- Primary threats: Heavy rain/flash flooding on burn scars and flood-prone areas; gusty winds potentially exceeding 60 mph; large hail in stronger storms.
- Temperature impacts: Thick cloud cover and cool northeasterly winds will keep daytime highs in the 70s Thursday and Friday.
Short-term outlook and what comes next
The unsettled pattern could linger into Saturday, with model guidance offering mixed signals about how long showers and cooler conditions will persist. By late weekend, an upper-level ridge is expected to build northward along the Rockies as a persistent trough remains off the West Coast. That shift would push temperatures back toward seasonal levels — upper 80s are possible Sunday into Monday — and reduce the coverage of rainfall.
Local public-safety officials typically advise residents to remain alert to changing weather and be prepared to act if flash flooding or damaging winds develop. Motorists should take extra care on wet roads and avoid driving through flooded stretches, and residents in burn-scar zones should monitor local emergency messages for targeted warnings.
| Day | Primary Risk | Expected Temps |
|---|---|---|
| Wednesday (afternoon) | Increasing showers, localized thunderstorms | 70s |
| Thursday–Friday | Widespread showers/thunderstorms; flash flooding risk on burn scars | 70s |
| Saturday | Lingering unsettled conditions possible | Cooler to near normal |
| Sunday–Monday | Drying and warming as ridge builds | Upper 80s |
Residents can expect some short-term relief from smoky conditions as precipitation and cooler air move in. However, the same storms that help clear the atmosphere will bring hazards of their own. Those with outdoor plans should keep weather apps or local forecasts handy and be ready to change plans if storms develop.
Local meteorologists continue to monitor the evolving pattern and will update the public if the threat profile changes, particularly for flash flooding and strong winds.
