St. John, IN Weather Forecast
Lake County, Indiana
Live radar, warnings and storm tracking for St. John, with free alerts the moment it counts.
The next few hours
Taller, warmer bars mean heavier rain. Dotted means no reading for that hour.
Hour by hour
Sunrise and sunset
Next five days, scored 0 to 100The first day or two use the HRRR and NBM cloud layers. Later days only have total cloud, so treat them as a rough guide.
Know when sunset at this place will be worth a photo
We score every sunrise and sunset here from the cloud, haze and smoke forecast, and let you know when one is likely to light up. Sunrise the evening before, sunset a few hours ahead.
Seven-day outlook
Free alerts for St. John
Every NWS warning, pushed to your phone, inbox or webhook the moment it is issued.
St. John, IN at a glance
St. John is home to about 23,644 people in Lake County, across 13 square miles. It ranks 42nd by population of 175 places in Indiana with a forecast here. The nearest neighbour with its own forecast is Schererville, 3 miles away.
- County
- Lake County
- Population
- 23,644 2023 est.
- Land area
- 13 sq mi
- People per sq mi
- 1,856
- Forecast point
- 41.4418°N, 87.4678°W
How well can the network see St. John?
The nearest Doppler radar is KLOT (Chicago, IL), to the WNW. Its lowest scan passes about 2,100 ft above St. John. Close enough to see rotation in the low part of a storm, where tornadoes form. St. John is closer to its radar than 65% of US cities.
The closest weather station is KIGQ (Chicago/Lansing Muni). Representative on most days, though a thunderstorm can hit one and miss the other.
Forecasts near St. John
- Schererville, IN3 mi
- Dyer, IN4 mi
- Cedar Lake, IN5 mi
- Sauk Village, IL6 mi
- Griffith, IN6 mi
- Crown Point, IN7 mi
- Lynwood, IL7 mi
- Highland, IN7 mi
Elsewhere in Indiana
IndianapolisFort WayneEvansvilleFishersSouth BendCarmelAll Indiana forecasts →

