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.
2026/06/18 20:53 (retrieved 50 minutes ago)
KMTO 182053Z AUTO 29008KT 10SM FEW031 22/16 A2982 RMK AO2 SLP091 T02220156 58004
Closest aviation forecast (TAF) to Williamson Airport
Closest forecast is Decatur Airport, 37.1 nm (68.7 km) NNW.
2026/06/18 18:33 (retrieved 3 hours ago)
TAF KDEC 181730Z 1818/1918 29010KT P6SM SCT025 BKN150 TEMPO 1818/1820 BKN025 FM190100 VRB03KT P6SM SCT250 FM191500 26008KT P6SM SCT050