Public forecast
Using degrees Fahrenheit for public forecast. Weather courtesy of Meteomatics.
Closest aviation weather report (METAR) to Williamson Airport
Closest report is Coles County Memorial Airport, 11.7 nm (21.7 km) NE.
2026/08/17 01:53 (retrieved 54 minutes ago)
KMTO 170153Z AUTO 31007KT 10SM BKN095 OVC110 25/23 A2998 RMK AO2 SLP145 T02500233
Closest aviation forecast (TAF) to Williamson Airport
Closest forecast is Decatur Airport, 37.1 nm (68.7 km) NNW.
2026/08/17 00:24 (retrieved 2 hours ago)
TAF KDEC 162321Z 1700/1724 29009KT P6SM VCSH FEW015 SCT030 BKN050 PROB30 1702/1705 -SHRA BKN030 FM170900 35007KT P6SM SCT030 BKN090