Todays weather in Boise Idaho - Tuesday - 19 May 2026

(00:00:00) Todays weather in Boise Idaho - Tuesday - 19 May 2026 (00:00:19) Today's Mild Conditions (00:00:54) Sunday Low-Pressure Arrival (00:01:27) Mountain Snow Above 3,500 Feet (00:01:53) Fire Weather Context (00:02:13) Weekend Wardrobe Takeaway Boise's weekend is a tale of two days, and knowing which one you're dressing for makes all the difference. Friday closes mild with highs in the mid-sixties and clearing clouds — a clean window for evening outdoor plans. Saturday climbs to a genuinely warm 82°F, the peak of the weekend and worth taking advantage of early. But a low-pressure system is timing its arrival somewhere between Saturday evening and Sunday morning, which means that warm window could be shorter than it looks.Sunday is a different story entirely. Temperatures fall around ten degrees below normal, settling near 61°F, while winds build with gusts reaching 25 miles per hour. High-profile vehicles should take those gusts seriously — they're strong enough to affect driving across the valley. The sun stays out, but that wind reshapes how everything feels.If you're planning a mountain trip on Sunday, elevation matters. Snow is possible above 3,500 feet, and the rain-to-snow transition line isn't locked in, so anyone heading into higher country should check conditions before departure and pack for several degrees colder than the valley.Beyond the weekend, fire weather days have been increasing across Idaho, Colorado, Utah, and Wyoming — a seasonal backdrop affecting both wildfire risk and power reliability worth tracking as warmer, drier stretches approach.Bottom line for your weekend wardrobe: light shirt Saturday, jacket and windblock Sunday. These are not the same day. Stay flexible, watch the Sunday gusts, and go prepared if you're heading up.This episode includes AI-generated content.