New Baden, IL Weather Forecast
Clinton County, Illinois
Seven-day outlook
41–73°F across the weekThe week runs between 43° and 73°, with tomorrow the warmest day of it. The second half leans cooling, and Friday is the coolest day in it. Tomorrow is the wettest day, peaking near 100%. 5 of the 7 days stay dry.
Forecasts come from the National Weather Service's own computer models, and current conditions from the nearest reporting weather station. Both are served through the weather API. A forecast is guidance, not a warning, and anything the Weather Service has actually issued is on the live map.
The written summaries on this page are generated from the forecast data above, not by a meteorologist. Each sentence is a reading of the same numbers you can see, and no forecaster has reviewed them.
About the New Baden forecast
New Baden sits at 38.5368°N, 89.7072°W in Clinton County, Illinois. The forecast above is drawn for that point from the National Weather Service's own computer models: a seven-day outlook, and a finer-grained one covering the next eighteen hours where it reaches, and the radar and alert panels show what the Weather Service has out over the area right now.
- County
- Clinton County
- Coordinates
- 38.5368°N, 89.7072°W
- Population
- 3,364 · 2023 estimate
- Land area
- 1.825 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for New Baden, and the forecast is for that location, not for every address inside the city limits, and a large city can have real weather differences from one side to the other.
How well can the network see New Baden?
The nearest Doppler radar is KLSX (St. Louis, MO), 54 miles to the WNW. A WSR-88D's lowest routine scan sits half a degree above horizontal, and the earth curves away beneath it, so by the time that beam reaches New Baden its center is about 3,900 ft above ground. That is comfortably inside the useful range. The lowest scan passes low enough over New Baden to show rotation in the part of a storm where tornadoes actually form.
The closest instrument actually measuring the air is KBLV · Belleville/Scott AFB on the ASOS/AWOS network, 7.5 miles away. Near enough to be representative on most days, though a summer thunderstorm can soak one and miss the other entirely.
Beam height is the standard 4/3-earth approximation for the 0.5° scan and assumes normal refraction; it is where the center of the beam is, not its edges, and unusual temperature profiles bend it. Radar siting from the NWS WSR-88D network, station positions from the Illinois observing network as of this build.
Forecasts near New Baden
- Trenton, IL5 mi
- Mascoutah, IL5 mi
- Lebanon, IL7 mi
- Breese, IL11 mi
- Shiloh, IL11 mi
- O'Fallon, IL12 mi
- Freeburg, IL13 mi
- Swansea, IL15 mi
Elsewhere in Illinois
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