Antioch, IL Weather Forecast
Lake County, Illinois
Seven-day outlook
39–67°F across the weekThe week runs between 39° and 67°, with today the warmest day of it. There is no real trend across it: one day looks much like the next. Saturday is the wettest day, peaking near 60%. 3 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 Antioch forecast
Antioch sits at 42.4772°N, 88.0671°W in Lake 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
- Lake County
- Coordinates
- 42.4772°N, 88.0671°W
- Population
- 14,833 · 2023 estimate
- Land area
- 8.242 sq mi
Place data from the US Census Bureau. Coordinates are the Census internal point for Antioch, 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 Antioch?
The nearest Doppler radar is KMKX (Milwaukee, WI), 42 miles to the NW. 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 Antioch its center is about 2,800 ft above ground. That is comfortably inside the useful range. The lowest scan passes low enough over Antioch to show rotation in the part of a storm where tornadoes actually form. Antioch is closer to its radar than 53% of US cities.
The closest instrument actually measuring the air is KENW · Kenosha Rgnl on the ASOS/AWOS network, 10 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 Antioch
- Lake Villa, IL4 mi
- Lindenhurst, IL5 mi
- Bristol, WI5 mi
- Salem Lakes, WI5 mi
- Round Lake Beach, IL7 mi
- Round Lake Heights, IL7 mi
- Paddock Lake, WI7 mi
- Fox Lake, IL7 mi
Elsewhere in Illinois
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