Area Forecast Discussion
Issued by NWS Glasgow, MT
Issued by NWS Glasgow, MT
023 FXUS65 KGGW 151900 AFDGGW Area Forecast Discussion National Weather Service Glasgow MT 100 PM MDT Sat Aug 15 2026 .KEY MESSAGES... - Near to slightly below normal temperatures are expected through the upcoming week. - Occasional chances for showers can be expected in the late afternoon to overnight hours through Tuesday. Dry conditions are currently expected beyond Tuesday. && .DISCUSSION... WEATHER PATTERN OVERVIEW: The western upper ridge will remain fairly flat through midweek with a series of weak shortwaves pushing along the international border. This will keep temperatures slightly below normal and bring scattered showers and a few thunderstorms into Montana. The timing of the waves indicate late afternoon to overnight precipitation. Upper ridge builds into the area for Wednesday, Thursday and Friday with a return to warmer and drier conditions for the end of the week. FORECAST CONFIDENCE & DEVIATIONS: Main deviations to the NBM were to spread pops across a larger area for Sunday night through Monday night. && .AVIATION... Generally VFR conditions expected through the TAF period. The cumulus field over the region this afternoon could briefly drop ceilings to MVFR, but should clear this evening. && .GGW WATCHES/WARNINGS/ADVISORIES... None. && $$ weather.gov/glasgow