National Weather Service United States Department of Commerce

Record Heat for the Intermountain West and Northern Plains; Heavy Rainfall and Severe Weather Threats

Record setting heat is expected over the next several days from the Intermountain West through the northern Plains. Furthermore, fire weather concerns increase with dry and breezy conditions. Meanwhile, heavy rainfall and severe thunderstorm threats for the Ohio/Tennessee Valleys, central Appalachians and Southeast today. The threat shifts to central Gulf Coast and across central Texas this week. Read More >

Isolated to scattered severe thunderstorms (marginal to slight risk - 1 to 2 out of 5) are expected later this afternoon and evening over northeastern Wyoming and western South Dakota, especially from 300 PM to 900 PM MT / 400 PM to 1000 PM MT. Hazards include hail, heavy downpours, and frequent lightning, but the most likely hazard will be damaging wind gusts from 60-70+ MPH. Monitor the weather and have a plan of action if severe weather is imminent.
Dangerous heat continues today with high temperatures in the 90s to 106F. Maximum heat indices for today will be 95-105F. High fire danger is expected. Take it easy. Hydrate.
Near critical fire danger is expected Monday as a cold front moves through the area. Behind the cold front, expect northerly winds gusting around 25-35 mph at times. Monday’s minimum afternoon relative humidity will be 15 to 25%.