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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Canada Scope Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Castlegar weather today, as shown in the live forecast above, reflects the city’s interior mountain climate – cool mornings with afternoon warming, common valley fog, and a mix of sun and clouds. This pattern is typical for the season, shaped by the surrounding Selkirk and Monashee ranges.
How does Castlegar’s geography influence its weather?
Castlegar sits in the West Kootenay region where the Columbia and Kootenay rivers converge. The valley floor traps cold air, producing frequent fog in autumn and winter, while the mountains block some Pacific moisture, giving drier summers than coastal BC. You can compare this to Vancouver’s coastal climate for a sharp contrast.
Does Castlegar get extreme winter cold?
Rarely. The mountains moderate temperatures; extreme lows below –20 °C are uncommon, but valley inversions can keep foggy days cold. Check the castlegar weather 14 day outlook for trend clues rather than exact numbers.
How accurate are longer-range forecasts for Castlegar?
Like most inland BC locations, 10‑day or 14‑day forecasts show general patterns. Use the weather in castlegar 10 days view for a broad sense, but rely on the castlegar weather 7 day and castlegar weather hourly for planning.
Is there a live weather cam for Castlegar?
Yes – several webcams (e.g., from local media and city outlets) show current conditions. The castlegar weather cam gives a real‑time look at the valley, especially helpful during fog or snowfall. For a deeper dive, explore the castlegar weather monthly averages and castlegar weather radar imagery on our Canada weather hub.