Public forecast
Using degrees Fahrenheit for public forecast. Weather courtesy of Meteomatics.
Closest aviation weather report (METAR) to Johnston Airport
Closest report is Central Illinois Regional Airport at Bloomington-Normal, 8.8 nm (16.2 km) NNE.
2026/05/23 13:56 (retrieved 22 minutes ago)
KBMI 231356Z 00000KT 10SM SCT080 18/14 A3001 RMK AO2 SLP158 T01830139
Closest aviation forecast (TAF) to Johnston Airport
Closest forecast is Central Illinois Regional Airport at Bloomington-Normal, 8.8 nm (16.2 km) NNE.
2026/05/23 12:22 (retrieved 2 hours ago)
TAF KBMI 231120Z 2312/2412 05006KT P6SM SCT015 BKN080 FM231500 VRB05KT P6SM BKN035 TEMPO 2408/2412 6SM -SHRA BR OVC015