By knowing how cold, mild, warm, or hot the weather in Thunder Bay, you will find it easier to plan your days.
Our 14 day weather forecast for Thunder Bay becomes more accurate the closer to the date of your visit, so always be sure to check in frequently for any weather updates.
| Date | Temperatures | Wind | |||
|---|---|---|---|---|---|
| Monday, April 29 | 1 ° / -1 ° |  | Heavy snow | 20 Km/h | |
| Tuesday, April 30 | 6 ° / 0 ° |  | Patchy rain possible | 8 Km/h | |
| Wednesday, May 1 | 10 ° / 3 ° |  | Light rain shower | 18 Km/h | |
| Thursday, May 2 | 8 ° / 2 ° | | Patchy light drizzle | 9 Km/h | |
| Friday, May 3 | 6 ° / 4 ° | | Light rain | 18 Km/h | |
| Saturday, May 4 | 4 ° / 4 ° | | Patchy rain possible | 18 Km/h | |
| Sunday, May 5 | 12 ° / 2 ° | | Patchy rain possible | 13 Km/h | |
| Monday, May 6 | 6 ° / 5 ° |  | Moderate rain | 14 Km/h | |
| Tuesday, May 7 | 7 ° / 5 ° | | Patchy rain possible | 17 Km/h | |
| Wednesday, May 8 | 6 ° / 2 ° |  | Overcast | 4 Km/h | |
| Thursday, May 9 | 10 ° / 1 ° |  | Partly cloudy | 11 Km/h | |
| Friday, May 10 | 12 ° / 5 ° | | Patchy light drizzle | 3 Km/h | |
| Saturday, May 11 | 7 ° / 6 ° | | Light rain shower | 19 Km/h | |
| Sunday, May 12 | 9 ° / 6 ° | | Light rain | 12 Km/h |
