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.
2025/12/27 22:21 (retrieved 24 minutes ago)
KMTO 272221Z AUTO 11010KT 2 1/2SM BR OVC003 11/11 A2985 RMK AO2 T01110106
Closest aviation forecast (TAF) to Williamson Airport
Closest forecast is Decatur Airport, 37.1 nm (68.7 km) NNW.
2025/12/27 22:51 Ammendment (retrieved 0 seconds ago)
TAF AMD KDEC 272147Z 2722/2818 15012KT P6SM OVC007 FM280300 16012KT 3SM BR OVC003 FM280500 17010KT 2SM BR OVC003 PROB30 2806/2812 3SM -SHRA OVC004 FM281200 19009KT 3SM -SHRA OVC004