Public forecast
Using degrees Celsius for public forecast. Weather courtesy of Meteomatics.
Current aviation weather report (METAR) for Marathon Airport
Report is more than 6 hours old.
2026/03/18 21:00 (retrieved 7 hours ago)
CYSP 182100Z 22005G15KT 4SM -SN OVC012 M05/M07 A2978 RMK SC8 /S02/ LAST STFD OBS/NEST 191200 SLP112
Aviation forecast (TAF) for Marathon Airport
Forecast is more than 6 hours old.
2026/03/18 20:00 Ammendment (retrieved 8 hours ago)
TAF AMD CYSP 182014Z 1820/1821 VRB03KT 6SM -SN SCT012 OVC025 TEMPO 1820/1821 2SM -SN BKN012 OVC020 RMK NXT FCST BY 191400Z