Boise, ID – Warm spring temperatures will dominate Boise’s weather this week, with daytime highs pushing into the 70s by Monday and peaking near 80°F midweek.
According to the National Weather Service, Monday will be mostly sunny with a high near 70°F and light variable winds. Tuesday and Wednesday will bring even warmer conditions, reaching 75°F and 80°F respectively. These highs are well above seasonal averages for late March in southwest Idaho.
The calm and sunny trend will hold through Wednesday, but forecasters warn of a 30 percent chance of rain moving in by late Wednesday night. Showers could persist into Thursday, dropping daytime highs to the mid-60s. Friday may bring another round of light showers with cooler temps in the upper 50s.
Drivers on I-84 through the Treasure Valley should plan for dry roads early in the week but stay alert for reduced visibility and slick surfaces if rain develops late Wednesday night into Thursday morning. Commuters are encouraged to monitor local updates and adjust travel plans accordingly.
Residents should take advantage of the early-week warmth for spring yardwork or outdoor activities, but keep an umbrella handy later in the week. With temperatures staying well above freezing at night, frost isn’t expected—offering an early jumpstart to spring planting.
The next seven days offer a mix of sunshine and mild spring rains, providing a classic seasonal transition across southern Idaho.
