01/11/2025
FirstWARN Weather Forecast: Saturday, January 11, 2025 - Saturday, January 18, 2025
Saturday, January 11, 2025
With the trough now east of the region, a ridge of high pressure will begin to build over the Middle Mississippi Valley today, allowing low-level winds to turn southerly. This shift will bring a brief warm-up, particularly for central and southeastern Missouri, where temperatures will climb into the mid to upper 30s under mostly sunny skies. Areas with significant snowpack or lingering cloud cover will see slightly cooler highs, remaining in the low to mid-30s. Overnight, increasing cloud cover ahead of an approaching shortwave will keep temperatures milder, with lows in the mid to upper 20s.
Sunday, January 12, 2025
A weak cold front associated with a passing low-pressure system to the north will move through the region during the day. Limited forcing along the front will keep precipitation chances low and mainly confined to northeastern Missouri and west-central Illinois. Where precipitation does occur, it will likely fall as light snow but remain sparse. Temperatures ahead of the front will reach the low to mid-30s before dropping sharply behind the boundary. Overnight lows will plunge into the teens across the region as Arctic air surges in.
Monday, January 13, 2025
The Arctic air mass will fully settle over the region, resulting in bitterly cold conditions. Highs will struggle to reach the low 20s, with wind chills in the single digits. Skies will remain partly to mostly cloudy, with a small chance for flurries as a clipper system begins to approach. Overnight lows will drop into the single digits, with some areas north of I-70 possibly dipping below zero.
Tuesday, January 14, 2025
A fast-moving clipper system will pass through the Midwest early Tuesday, but its impact on the region remains uncertain. If precipitation occurs, it will be light snow, with only minor accumulations expected. Otherwise, the Arctic air mass will continue to dominate, keeping highs in the upper teens to low 20s and lows in the single digits to near zero. Wind chills will remain dangerously cold, particularly in the early morning hours.
Wednesday, January 15, 2025
Temperatures will begin a gradual rebound as the Arctic air mass starts to retreat. Highs will climb into the mid-20s under partly sunny skies, though this will still be well below normal for mid-January. Overnight lows will remain cold, dipping into the low teens, but wind chills will be less severe compared to earlier in the week.
Thursday, January 16, 2025
A shift in the upper-level pattern will allow for the return of southerly flow and a more significant moderation in temperatures. Highs will rise into the low to mid-30s across much of the area, finally climbing above freezing for the first time in several days. Snow and ice on the ground may temper the warm-up slightly in areas with heavier accumulations. Overnight lows will hover in the mid-20s.
Friday, January 17, 2025
The warming trend will continue as ridging strengthens aloft and southwesterly flow dominates. Highs will reach the mid-30s, with some areas south of I-70 approaching 40°F. Skies will be partly sunny, and the milder conditions will allow for some melting of lingering snow and ice. Overnight lows will remain relatively mild, in the upper 20s to near 30°F.
Saturday, January 18, 2025
Looking ahead, a new upper-level trough may begin to approach the region, signaling the possibility of a return to unsettled weather late in the weekend. However, for much of Saturday, dry conditions are expected, with highs in the upper 30s to near 40°F. This brief thaw will provide some relief after the extended cold earlier in the week.
Stay tuned to FirstWARN Weather for updates as we continue to monitor the next round of winter weather and any potential impacts.
