Thunder Bay – NetNewsLedger Weather Desk | Updated Monday, March 16, 2026 – Planning travel east of Thunder Bay? Weather and Road Conditions will likely impact those plans

A potent late-winter storm is hammering large parts of Northern Ontario today, bringing heavy snow, blowing snow, and in some areas, a messy mix of freezing rain and ice pellets. Visibility is dropping fast in the hardest-hit corridors, and travel may quickly shift from “slow” to “not recommended,” especially along Highway 17 and the northern routes feeding Timmins and Sudbury.

Wawa

Current Conditions (Wawa Airport | 11:00 AM EDT)

Heavy snow showers and blowing snow continue with very poor visibility (0.4 km). Temperature is -17.5°C with a wind chill near -29, and winds are NNE 26 km/h gusting 52 km/h. Pressure is 100.4 kPa and falling.

Today to Wednesday

• Today: Snow at times heavy and blowing snow. 10–15 cm possible. North wind 50 km/h gusting 80. High -15°C. Risk of frostbite.

• Tonight: Snow ends late evening, then cloudy with a 60% chance of flurries. Blowing snow continues. Low -23°C.

• Tuesday: Mix of sun and cloud, clearing late morning. High -12°C.

Sault Ste. Marie

Current Conditions (Sault Ste. Marie Airport | 11:18 AM EDT)

Light snow and blowing snow are reducing visibility to 1.2 km. Temperature is -11.0°C with wind chill near -21, winds NNE 33 km/h gusting 48 km/h, and pressure 99.3 kPa and falling.

Today to Wednesday

• Today: Snow at times heavy, mixing with ice pellets late morning, with blowing snow. 5–10 cm. North wind 40 km/h gusting 70. Temperature steady near -10°C.

• Tonight: Flurries and blowing snow. About 2 cm. Low -16°C.

• Tuesday: Mainly cloudy early, then clearing late morning. Blowing snow risk in the morning. High -10°C.

Geraldton

Current Conditions (Geraldton Airport | 11:00 AM EDT)

Skies are mainly sunny at -19.2°C with dryer air (humidity ~53%).

Today to Wednesday

• Today: Mix of sun and cloud with a 60% chance of light snow and local blowing snow. NE wind 30 km/h gusting 60. High -16°C.

• Tonight: Cloudy with a 60% chance of light snow; local blowing snow persists. Low -24°C.

• Tuesday: Mix of sun and cloud, clearing late morning. High -12°C.

Sudbury

Current Conditions (Greater Sudbury Airport | 11:00 AM EDT)

Light freezing rain is being reported with temperature -5.4°C, winds NE 35 km/h, and visibility around 5 km. Pressure is 98.9 kPa and falling—a classic “storm still in control” signal.

Today to Wednesday

• Today: Freezing rain or ice pellets changing to snow this afternoon. NE wind 30 km/h gusting 70. Temperature falling to -9°C.

• Tonight: Flurries (~2 cm). North wind 30 gusting 50. Low -20°C.

• Tuesday: Mainly cloudy with a 40% flurry risk early, then clearing late day. High -12°C.

Timmins

Current Conditions (Timmins Victor Power Airport | 11:00 AM EDT)

Light snow and drifting snow with visibility down to 1.0 km. Temperature is -14.2°C, wind N 31 km/h gusting 44, and wind chill is -25. Pressure is 100.0 kPa and falling.

Today to Wednesday

• Today: Snow at times heavy with blowing snow. 15–25 cm possible. North wind 40 km/h gusting 70.Temperature steady near -14°C.

• Tonight: Periods of snow and local blowing snow (~5 cm). Low -23°C.

• Tuesday: Light snow and local blowing snow ending near noon, then clearing. High -15°C.

Highway and Road Conditions (Ontario 511 + Weather Impacts)

Ontario 511 notes that winter road and visibility conditions are updated multiple times per day by MTO maintenance contractors, but conditions can change quickly during storms—especially with blowing snow and freezing rain.

Key travel impacts today (based on the weather setup):

• Highway 17 (Wawa ↔ Sault Ste. Marie): Expect blowing snow, drifting, and sudden whiteouts. Environment Canada notes near-zero visibility and possible road closures in the storm zone.

• Sudbury corridors (Hwy 17 / Hwy 69 / Hwy 144): The freezing rain → snow transition can produce slick highways first, then reduced visibility as snow takes over later today.

• Timmins region routes (including Hwy 101): Snowfall totals are high enough that some routes may become impassable, with closures possible and major travel disruptions expected.

Active roadwork note (Ontario 511 event feed):

• Ontario 511 lists recurring construction with an alternating lane on Highway 17 eastbound between Terrace Bay Landfill Site Rd (S) (Schreiber area) and Hwy 614 (to Manitouwadge) near Marathon—a stretch that matters for anyone moving the North Shore.

Travel tip: In storms like this, plan extra fuel, keep a winter kit, and be ready to stop short—visibility can collapse in minutes in open areas and along the Lake Superior shoreline.

Wardrobe Recommendations

• Storm zones (Wawa / Sault / Timmins): Full winter gear: insulated parka, snow pants if you’ll be outside, goggles or glasses for blowing snow, warm mitts, and a face covering.

• Sudbury (icing risk): Traction cleats are a smart add-on; freezing rain makes sidewalks deceptively slick before the snow arrives.

• Geraldton (cold + wind): Dress for wind chill—layered insulation and a windproof outer shell.

Summary

Northern Ontario weather and roads update for Wawa, Sault Ste. Marie, Geraldton, Sudbury, and Timmins for March 16, 2026—winter storm warnings, freezing rain risk, blowing snow, travel impacts, and Ontario 511 highway notes.