    # Missouri and Illinois Face Prolonged Arctic Cold as Wind Chills Near or Below Zero Persist Through Tuesday Morning **MISSOURI AND ILLINOIS —** A **reinforcing Arctic air mass** is settling across the region, bringing **several consecutive days of bitter cold** to much of **Missouri and Illinois**, including the **St. Louis metro area**. Forecast guidance shows **morning wind chills near or below zero each day**, with **Monday shaping up as the coldest and most uncomfortable day** due to a combination of frigid air and **persistent breezy winds**. Meteorologists say this is not a one-morning cold snap. Instead, the pattern favors **extended exposure to dangerous cold**, especially during the early morning and overnight hours. ## What the Wind Chill Forecast Shows According to the latest outlook, **wind chills will remain the primary concern**, even during daylight hours. * **Sunday Morning:** * Wind chills around **−5° to +5°F** * **Monday Morning (Coldest Period):** * Wind chills dropping to **−15° to +5°F**, especially in exposed areas * **Breezy conditions** will continue through the day, keeping it feeling much colder than actual air temperatures * **Tuesday Morning:** * Wind chills still near **0° to 10°F**, slow improvement but remaining hazardous Despite slightly higher afternoon readings, **wind will prevent meaningful relief**, particularly on Monday. ## Why Monday Is the Coldest Day Forecasters point to **stronger surface winds** on Monday as the key factor. Even if temperatures rise a few degrees during the afternoon, **breezy northwest winds** will keep wind chill values dangerously low throughout much of the day. This increases the risk of: * **Frostbite on exposed skin in as little as 15–30 minutes** * **Hypothermia**, especially for those without proper winter clothing * **Icy conditions** lingering on roads, sidewalks, and untreated surfaces ## Impacts Residents Should Prepare For The prolonged nature of this cold increases impacts beyond discomfort. * **Morning commutes** will be harsh, especially before sunrise * **School delays** are possible Tuesday morning due to extreme cold * **Frozen pipes** become more likely without proper precautions * **Outdoor workers and pets** face elevated risk Officials urge residents to limit time outdoors, dress in layers, cover exposed skin, and ensure pets are brought inside whenever possible. ## When Will Conditions Improve? Temperatures are expected to **slowly moderate after Tuesday morning**, but winter remains firmly in control. Even as daytime highs recover slightly, **cold mornings will continue to pose risks** until Arctic air finally retreats later in the week. Residents across **Missouri and Illinois** should remain alert, follow local updates, and treat this cold spell seriously. While snowfall may be limited, **the cold itself is the primary hazard**, and its impacts can be just as dangerous as a winter storm.](https://waldronnews.com/wp-content/uploads/2026/01/Missouri-and-Illinois-Face-Prolonged-Arctic-Cold-as-Wind-Chills-Near-or-Below-Zero-Persist-Through-Tuesday-Morning-768x432.jpg)
MISSOURI AND ILLINOIS — A reinforcing Arctic air mass is settling across the region, bringing several consecutive days of bitter cold to much of Missouri and Illinois, including the St. Louis metro area. Forecast guidance shows morning wind chills near or below zero each day, with Monday shaping up as the coldest and most uncomfortable…
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MISSOURI & ILLINOIS — A quick-moving round of snowfall is expected to impact parts of eastern Missouri and southwest Illinois later this afternoon, bringing the potential for slick travel conditions, especially on bridges, overpasses, and elevated roadways, according to the National Weather Service in St. Louis. Forecasters stress that while this snow event is not…