Cheyenne, Wyoming – Gusty winds and extremely dry air will elevate wildfire danger across southeast Wyoming within hours, creating conditions where fires can start and spread rapidly through Monday evening.
According to the National Weather Service in Cheyenne, mild temperatures and very low humidity will combine with increasing winds Sunday and Monday. Wind gusts are expected to reach 30 to 40 mph during the afternoon and evening hours, especially along the I-25 corridor from Cheyenne to Wheatland and extending east toward Torrington and Scottsbluff.
High temperatures will climb into the upper 50s to low 60s Sunday before warming into the upper 70s to low 80s Monday. Despite the warming trend, humidity levels will remain critically low, increasing the risk of fast-moving grass fires.
Areas including Laramie, Cheyenne, Douglas, and Sidney are most at risk, where open fields and dry vegetation could ignite easily. Any spark—from vehicles, equipment, or outdoor burning—could lead to rapid fire spread under these conditions.
Residents are urged to avoid outdoor burning, secure loose items, and report any signs of smoke immediately. Travel along open highways may also be impacted by strong crosswinds, particularly for high-profile vehicles.
Fire weather concerns will persist through Monday evening before conditions gradually improve. Additional advisories may be issued if winds or fire risk intensify.
