Public forecast
Using degrees Fahrenheit for public forecast. Weather courtesy of Meteomatics.
Closest aviation weather report (METAR) to Duncan Airport
Closest report is Helena Regional Airport, 8.2 nm (15.2 km) ENE.
2026/08/27 09:53 (retrieved 41 minutes ago)
KHLN 270953Z 31004KT 10SM CLR 14/11 A3011 RMK AO2 SLP178 T01390111
Closest aviation forecast (TAF) to Duncan Airport
Closest forecast is Helena Regional Airport, 8.2 nm (15.2 km) ENE.
2026/08/27 06:24 (retrieved 4 hours ago)
TAF KHLN 270523Z 2706/2806 VRB04KT P6SM SCT110 FM271400 09009KT P6SM SCT120 FM271900 20009G15KT P6SM SCT080 BKN120 PROB30 2719/2801 VRB20G40KT 6SM -TSRA BKN080CB FM280300 24009KT P6SM SCT200