Koster, IL 21 January Weather

Altitude - 194m | 41°5′31″N,87°41′6″W | map (OSM)

Koster, IL

°F

2 amCloudy17mphNW

Sun, January 11, 20262:30 AM (GMT -06:00)

Wednesday Jan 21 2026	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	21°	20°	20°	25°	31°	33°	30°	28°
wind	9mph	9mph	9mph	10mph	11mph	10mph	8mph	9mph
pressure in	29.46	29.45	29.42	29.41	29.40	29.37	29.38	29.42

Tuesday Jan 21 2025	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	4°	0°	-5°	-4°	-1°	0°	-1°	-3°
wind	11mph	10mph	12mph	12mph	14mph	12mph	8mph	10mph
pressure in	29.81	29.83	29.86	29.89	29.85	29.81	29.80	29.76

Sunday Jan 21 2024	12 am	3 am	6 am	9 am	12 pm	3 pm	6 pm	9 pm

temperature °F	-1°	-3°	-3°	5°	16°	19°	18°	18°
wind	5mph	3mph	2mph	6mph	12mph	13mph	11mph	13mph
pressure in	29.90	29.90	29.91	29.91	29.85	29.77	29.74	29.70

* Koster, IL weather for January 21 is prepared on the basis of GFS data and is intended for personal use in the "as is" (as is) format. You can see on this page Koster, IL Weather for January 21, as well as compare air temperature with the climate norm for this date. Perhaps you will be interested - for comparison, the actual weather on January 21 for previous years is presented.