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Live forecasts update automatically; written guidance last reviewed 16 June 2026 by the Toronto Post Weather Desk. Data from Environment and Climate Change Canada and other national met services via Open-Meteo.
Live data from Open-Meteo · updates automatically ·
Check the live forecast above for today’s high and low — with that baseline, expect morning cloud to burn off by midday then a dry afternoon with light northwest winds under 15 km/h. Carry a light jacket; overnight lows dip to the single digits.
What’s the 14‑day outlook for Mission?
The mission weather 14 day trend shows a ridge building late in the week, pushing daytime highs 2–4°C above seasonal norms. No significant precipitation is signalled through day 7, though by day 10–14 a trough from the Gulf of Alaska may bring a 40–60% chance of rain. Mission weather 14 day forecast AccuWeather and other models agree on a dry start then a wetter finish. For hour‑by‑hour changes, check the mission weather hourly update on the Canada weather hub.
How does the daily pattern change in the short term?
The mission weather 7 days cycle shows valley fog in the mornings followed by afternoon highs near 22°C, then a cooling trend midweek as a marine push arrives. Overnight lows range from 8°C to 12°C. The 30 day weather forecast Mission BC leans drier than average for the first half of the period, then near normal for the second half. For wind and precipitation timing, use the mission weather hourly tool above.
When does Mission typically see its wettest months?
November through January average 180–200 mm of rainfall each month, driven by Pacific frontal systems. July and August are the driest, with monthly totals near 40 mm. The mission weather 14 day outlook now shows a transition toward wetter pattern by late month.
How reliable are 7‑day forecasts for this valley?
Environment and Climate Change Canada’s 7‑day forecasts for Mission are accurate about 80% of the time for temperature ranges, but precipitation timing can shift by 6–12 hours due to orographic effects. Always confirm with the mission weather hourly updates on the day.
Does elevation affect Mission’s weather significantly?
Yes — locations above 200 m in the Fraser Valley can be 3–5°C cooler and see snowfall earlier than the valley floor. The mission weather tomorrow forecast for higher terrain may include a frost risk when valley lows stay above 4°C.
Sources
For regional comparisons, check Vancouver Weather or Weather Warning for alerts affecting the Fraser Valley.