Weather in Niantic, Illinois
Live weather conditions. Source: Open-Meteo
Updated May 24, 2026 · 05:01 PM ET · Refreshes every hour
80°F
Clear sky
Feels like 78°F
36%
Humidity
11 mph
Wind Speed
About Weather in Niantic
Niantic is located in Illinois (coordinates: 39.854066°N, 89.165261°W). Weather data is sourced from Open-Meteo, a free and open meteorological API using data from national weather services including NOAA.
All temperatures are displayed in Fahrenheit. Wind speed is in miles per hour.