Cheyenne, WY – A spring-like shift in the weather pattern is expected to impact Wyoming during the February 11–17 period, bringing above-normal temperatures with potential statewide implications.
According to the NOAA Climate Prediction Center, the 8–14 day outlook strongly favors warmer-than-normal temperatures across the central Rockies and High Plains, including all of Wyoming. This transition follows recent periods of intense winter cold and signals a temporary break from persistent mid-winter conditions.
In southeastern Wyoming, including Cheyenne and communities along the I-25 corridor, average mid-February high temperatures typically range from the upper 20s to low 30s. Forecast guidance suggests daytime highs may frequently climb into the 30s and low 40s during this period. Overnight lows are also expected to moderate, reducing the frequency of subzero temperatures.
Across central Wyoming, including Casper and Riverton, temperatures are forecast to trend several degrees above seasonal averages, with more consistent afternoon warming. Western Wyoming, including Rock Springs, Jackson, and Star Valley, may also see milder daytime temperatures, though colder nights will persist in valleys and higher elevations.
As temperatures rise, existing snowpack across lower elevations and mountain foothills may begin to thaw. Snowmelt combined with rainfall could increase runoff into rivers, streams, and drainage systems. Transportation corridors such as I-25, I-80, I-90, U.S. Highway 287, and U.S. Highway 191 are particularly sensitive to ponding and localized flooding during rapid warmups.
The Climate Prediction Center’s precipitation outlook indicates near to above-normal precipitation potential during this timeframe. While no specific storm systems are identified, rainfall combined with melting snow could contribute to rises on rivers including the Platte, North Platte, Green, Bighorn, and Wind.
Warming temperatures may also weaken ice on rivers, lakes, and reservoirs statewide, creating hazardous conditions for recreation and livestock operations. The National Weather Service advises residents to avoid frozen waterways as ice conditions deteriorate during thaw periods.
Commuters, students, ranchers, and outdoor workers may notice more spring-like afternoons, but officials caution that winter hazards can persist overnight and in shaded or higher-elevation areas.
Residents across Wyoming are encouraged to monitor updated forecasts, river statements, and local advisories as confidence increases closer to the February 11–17 timeframe.
