Public forecast
Using degrees Celsius for public forecast. Weather courtesy of Meteomatics.
Closest aviation weather report (METAR) to Grand Valley (Madill Field)
Closest report is Region of Waterloo International Airport, 24.6 nm (45.5 km) SSW.
2026/08/17 11:00 (retrieved 34 minutes ago)
CYKF 171100Z AUTO 30006KT 9SM OVC007 18/17 A2990 RMK SLP122 DENSITY ALT 1700FT
Closest aviation forecast (TAF) to Grand Valley (Madill Field)
Closest forecast is Region of Waterloo International Airport, 24.6 nm (45.5 km) SSW.
2026/08/17 08:51 Ammendment (retrieved 3 hours ago)
TAF AMD TAF AMD CYKF 170848Z 1708/1720 31010KT P6SM BKN030 TEMPO 1708/1713 BKN008 PROB30 1708/1712 3SM BR BKN005 FM171300 33010KT P6SM BKN015 TEMPO 1713/1715 BKN030 FM171500 35010KT P6SM BKN040 RMK FCST BASED ON AUTO OBS NXT FCST BY 171400Z