North Bay, Ont. — Cloudy conditions and a cool daytime high of about 9°C are expected across the North Bay area on Monday, while an overnight clearing trend will let temperatures fall to near −5°C, raising the prospect of frost and some fog patches before a brief warm-up midweek.
Current observations and today's outlook
Early-morning readings showed a cloudy sky with a temperature near 6.3°C, pressure at 102.5 kPa and visibility around 16.1 km. Humidity was high at 86% and the dewpoint sat close to 4.1°C. Winds were from the north at roughly 13 km/h, expected to pick up to near 20 km/h this morning.
The forecast calls for a 40 per cent chance of showers early in the day, then a mix of sun and cloud through the afternoon. UV levels remain moderate with an index around 3. With northerly winds this morning, the feel outside will be cooler than the thermometer suggests.
Nighttime temperatures bring frost concerns
As conditions clear late this evening, temperatures are forecast to fall to about −5°C. The combination of clearing skies and light winds will favour radiational cooling, and Environment Canada–sourced guidance indicates fog patches developing after midnight. With lows that cold, exposed vegetation could see frost.
- Today: High near 9°C; northerly winds up to 20 km/h; 40% chance of early showers.
- Tonight: Clearing; low around −5°C; fog patches after midnight; wind up to 15 km/h and wind chill near −10 overnight.
- Tuesday: Sunny with fog dissipating; high about 5°C; morning wind chill around −10.
Travellers and residents should be aware of the overnight wind chill values. The forecast notes wind chill could reach about −10 through the night and again into Tuesday morning where winds remain light but temperatures are well below zero.
Short-term trend through the week
The brief cold snap gives way to milder conditions midweek. By Wednesday the forecast rises to a daytime high near 15°C, with Thursday slightly warmer around 17°C. Scattered showers are possible later in the week, with chances generally in the 30–40 per cent range on Wednesday through Sunday.
| Day | High | Low | Notes |
|---|---|---|---|
| Monday | 9°C | — | Cloudy; chance of early showers; northerly winds |
| Tonight | — | −5°C | Clearing; fog patches after midnight; wind chill to −10 |
| Tuesday | 5°C | 1°C | Sunny; fog dissipating in the morning |
| Wednesday | 15°C | 9°C | Mix of sun and cloud; small shower chance overnight |
Normals for the period show an average high near 8°C and an average low around 0°C, so the midweek readings will sit a few degrees above typical values. Yesterday's reported high reached about 15.1°C, while the low was roughly 3.2°C, and precipitation accumulation was light at 2 mm.
Sunrise on Monday was at 7:50 a.m. and sunset will be at 6:13 p.m.. Residents should prepare for chilly overnight conditions and patchy fog that could reduce visibility on local roads before the morning commute on Tuesday.
Monitoring conditions overnight and into Tuesday morning is advisable for those with outdoor plans or sensitive crops. The transition from cool, clear nights to milder, unsettled midweek weather illustrates the fast-changing conditions typical of this autumn period.
