Idaho wakes up to mild air and quiet skies, but wet pavement and steady rain will soon take over Boise streets by late tonight.
The morning starts calm and mostly cloudy, with temperatures climbing toward 59 degrees by afternoon. According to the National Weather Service in Boise, rain develops after 11 p.m., with an 80 percent chance of precipitation before midnight. That rain becomes widespread Tuesday, when chances rise to 100 percent and totals between a half and three-quarters of an inch are possible through Tuesday night.
Drivers along I-84, Eagle Road, and Chinden Boulevard should expect ponding on roadways and reduced visibility Tuesday afternoon. Leave extra space between vehicles and slow down during heavier bursts. Winds remain light, but steady rainfall could create slick conditions during peak travel hours.
Rain continues into Tuesday evening, then tapers early Wednesday. A brief rain-snow mix is possible before 8 a.m. Wednesday as temperatures hover in the upper 30s to near 40 degrees. Little accumulation is expected, yet this is the time of year when flash freezing can develop if skies clear and temperatures fall quickly. Watch for isolated slick spots early Wednesday, especially on bridges and overpasses.
By Wednesday afternoon, clouds break for partial sunshine with highs near 51. Sunshine returns Thursday with highs in the mid-50s, followed by mostly sunny skies Friday near 57 degrees. The 6–10 day outlook signals above-normal temperatures building late week into next weekend, hinting at early spring warmth across southwest Idaho.
Five Day Outlook for Boise, Idaho:
Today: Mostly cloudy, high near 59.
Tuesday: Rain, high near 50.
Wednesday: Chance of rain and snow early, high near 51.
Thursday: Sunny, high near 54.
Friday: Mostly sunny, high near 57.
