Boise, Idaho – Sweltering heat and the risk of scattered thunderstorms return to Boise Wednesday, July 30th, with afternoon highs pushing 98°F. Commuters should be alert for sudden weather changes, especially along I-84 between 3 and 9 p.m., when storm chances rise.
According to the National Weather Service, a 20% chance of showers and isolated thunderstorms could impact Ada County late Wednesday. Winds will remain light but may become gusty near storms. The combination of triple-digit heat and even isolated lightning may stress local infrastructure and outdoor activity plans.
Wednesday will begin sunny and hot, with calm winds shifting westward into the afternoon. While storm activity is expected to remain scattered, cloud cover and short bursts of rain may affect areas west and north of Boise, including Eagle and Meridian.
By Thursday, July 31st, another slight chance of afternoon thunderstorms returns, though temperatures ease slightly to 93°F. The overall heat trend holds through Friday, with a projected high of 92°F under clear skies. Temperatures stay in the low 90s into the weekend, but overnight lows dip into the low 60s, offering some relief.
What’s Next:
No watches or warnings are currently issued, but additional weather advisories are possible through Friday. Residents should monitor for midday alerts and remain hydrated during outdoor activities.
🌤 Five-Day Forecast: Boise, ID
- Wednesday, July 30 – High: 98°F | PM T-storm chance (20%)
- Thursday, July 31 – High: 93°F | Slight PM T-storms
- Friday, August 1 – High: 92°F | Sunny, hot
- Saturday, August 2 – High: 91°F | Sunny
- Sunday, August 3 – High: 88°F | Sunny
- Monday, August 4 – High: 85°F | Mostly sunny
Stay tuned for late-week updates and potential heat advisories as Boise remains locked in peak summer conditions.


