Dry and cold west, frosty east. A quiet night with sharp edges.

Alberta — Highway 2 (QEII) & Highway 16 (Yellowhead)

QEII and Yellowhead: mostly dry, ice in places

The overnight read on the Calgary–Edmonton QEII (Highway 2) and the Yellowhead (Highway 16) was 'mostly dry, ice in places' — the coldest corridor reading −5°C near Red Deer, with winds gusting to 19 km/h near Fort Macleod. Tuesday morning brought freezing temperatures to central Alberta. Same story as last night: dry pavement plus sub-zero air means the morning hazard is invisible ice on bridge decks and shaded ramps.

Source: Weather Navigation road report (presenting 511 Alberta data)

British Columbia — Highway 5 (Coquihalla)

Coquihalla stayed open — work zones in effect through Oct 31

Highway 5 between Hope and Kamloops ran open to through traffic all night with no incidents reported; drive times held roughly normal — Merritt to Kamloops was only a few minutes over typical at the 3 a.m. PDT check. The pass being clear does not mean the drive is: three work zones stay in effect through Oct 31, with electrical maintenance closing the right lane and a 50 km/h construction zone at the Merritt bridge. Expect sudden stops and lane shifts before sunrise.

Source: Is The Coquihalla Open (polling DriveBC's Open511 feed)

British Columbia — Highway 5, north of Kamloops

Overnight fog on Highway 5 north of Kamloops

While the Coquihalla ran clean, the Yellowhead stretch of Highway 5 further north did not have a quiet night. Fog patches were reported between Church Street near Little Fort and McMurphy Pullout (updated 12:50 a.m. PDT), with limited visibility and fog from McLure Ferry Road south of Barriere to Bean Road (updated 2:53 a.m. PDT). Northbound trucks hitting that stretch before dawn roll through with headlights and hazards earning their keep.

Source: BC Highway road reports (presenting DriveBC data)

British Columbia — designated routes

BC chain season is on

Not an incident — the standing rule now in force, and the one that catches drivers every October. Since Oct 1, designated BC highways require winter tires (M+S or the mountain-snowflake symbol, minimum 3.5 mm tread) on passenger vehicles, and commercial vehicles must carry chains — in effect until Mar 31 or Apr 30 depending on the route. Signs mark where each requirement starts; non-compliant vehicles can be turned around or fined.

Source: DriveSmartBC (via Fraser Valley News Network) · Read next: Best tire chains for semi trucks in Canada

Ontario — GTA & Niagara corridor

Frost advisory overnight across the GTA corridor

Environment Canada put a frost advisory out overnight for Mississauga, Brampton, and the Niagara Region — patchy frost expected with overnight lows near 1°C away from the lakes. The hazard window is the morning roll-out: frosted glass, slick bridge decks, and fog in the low stretches of the 401 and QEW. The day itself turns pleasant, with sunny highs near 15–16°C — a frosty windshield you deal with at dawn, gone by mid-morning.

Source: Environment Canada (via NewsBeep / INSAUGA wire)

Ontario — Ottawa

Ottawa wakes to 0.9°C and morning fog

Ottawa woke up at 0.9°C with Environment Canada-cited fog patches dissipating through the morning — another frost-on-the-glass start for anyone rolling out of the capital. Highs run near 15–16°C under sun today, so this is a scrape-and-roll morning, not a delay-the-trip morning. The pattern matches the GTA: the east woke up cold and damp, with the hazards clustered at first light.

Source: Environment Canada (via ottown.ca)

Bottom line for drivers

West of the prairies, the night was dry and cold — ice in places on Alberta's corridors, fog patches on Highway 5 north of Kamloops. In the east, frost was the story overnight with near-freezing starts. Nothing major closed. The hazards this morning are the small, quiet ones: black ice on bridge decks, fog in low stretches, and lane shifts in the Coquihalla work zones.

Deeper on winter itself: the winter gear hub — heat, freeze, traction, sleep — and the free Winter Cab Checklist.

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