Southern Illinois – Rain chances are expected to increase across southern Illinois during the January 7–13 period, according to the latest federal weather outlook, signaling a shift toward a wetter pattern across the lower Midwest.
According to the National Weather Service Climate Prediction Center, southern Illinois is included in a region forecast for near- to above-normal precipitation during the 8–14 day window. In January, this pattern supports multiple rounds of rainfall as storm systems track across the central United States and the Ohio Valley.
Southern Illinois falls within the 33–50% probability range for above-normal precipitation, indicating an increased likelihood of several rain events rather than a single prolonged system. Rainfall may occur in waves, with periods of lighter rain followed by heavier bursts depending on storm timing and strength.
Temperature outlooks for the same timeframe indicate near-normal temperatures across the region. This setup favors rain as the dominant precipitation type and limits the risk of winter weather impacts, though cooler air may briefly follow frontal passages.
For commuters, students, and freight operators, increased rain chances may lead to slick roads, reduced visibility, and slower travel during heavier rainfall. Major corridors including Interstate 24, Interstate 57, Interstate 64, U.S. 45, and U.S. 51 may be impacted, particularly during peak travel times.
Repeated rainfall could also lead to localized ponding on roads and rises on small creeks and streams, especially in low-lying or poorly drained areas. Agricultural fields and rural roads may see short-term drainage issues during heavier rain events.
Forecasters emphasize that 8–14 day outlooks reflect probability trends, not specific rainfall totals or storm timing. Residents are encouraged to monitor daily forecasts and updates from local National Weather Service offices as the period approaches.
No flood watches or rain-related advisories are currently in effect based solely on this outlook, but the signal supports increased awareness for wet-weather impacts during the second week of January.
