Thunder Bay Extended Forecast with high and low temperatures
2 Week Extended Forecast in Thunder Bay, Ontario, Canada
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| Conditions | Comfort | Precipitation | Sun | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Day | Temperature | Weather | Feels Like | Wind | Humidity | Chance | Amount | UV | Sunrise | Sunset | ||
| Tue Mar 17 |  | 18 / -3 °F | Afternoon clouds. | 11 °F | 4 mph | ↑ | 41% | 5% | 0.00" | 3 (Moderate) | 8:05 am | 8:05 pm |
| Wed Mar 18 |  | 34 / 13 °F | Light snow. Overcast. | 22 °F | 8 mph | ↑ | 65% | 42% | 0.65" | 0 (Low) | 8:03 am | 8:07 pm |
| Thu Mar 19 | | 35 / 24 °F | Light snow. Overcast. | 29 °F | 4 mph | ↑ | 58% | 64% | 2.24" | 0 (Low) | 8:01 am | 8:08 pm |
| Fri Mar 20 | | 36 / 22 °F | Light snow. Overcast. | 29 °F | 7 mph | ↑ | 64% | 46% | 2.29" | 0 (Low) | 7:59 am | 8:10 pm |
| Sat Mar 21 |  | 37 / 23 °F | Snow. Overcast. | 31 °F | 6 mph | ↑ | 79% | 67% | 2.92" | 0 (Low) | 7:57 am | 8:11 pm |
| Sun Mar 22 | | 32 / 15 °F | Light snow. Overcast. | 12 °F | 20 mph | ↑ | 59% | 51% | 1.07" | 0 (Low) | 7:55 am | 8:13 pm |
| Mon Mar 23 | | 31 / 3 °F | Afternoon clouds. | 18 °F | 11 mph | ↑ | 52% | 2% | 0.00" | 3 (Moderate) | 7:53 am | 8:14 pm |
| Tue Mar 24 | | 31 / 15 °F | Light snow late. Overcast. | 22 °F | 4 mph | ↑ | 43% | 41% | 0.06" | 0 (Low) | 7:51 am | 8:15 pm |
| Wed Mar 25 | | 32 / 15 °F | Moderate snow. Overcast. | 20 °F | 17 mph | ↑ | 94% | 78% | 11.16" | 0 (Low) | 7:49 am | 8:17 pm |
| Thu Mar 26 | | 29 / 14 °F | Light snow. Cloudy. | 15 °F | 17 mph | ↑ | 77% | 61% | 2.20" | 3 (Moderate) | 7:47 am | 8:18 pm |
| Fri Mar 27 | | 29 / 17 °F | Light snow late. Afternoon clouds. | 21 °F | 6 mph | ↑ | 72% | 43% | 0.17" | 3 (Moderate) | 7:45 am | 8:20 pm |
| Sat Mar 28 | | 32 / 14 °F | Moderate snow. Overcast. | 20 °F | 13 mph | ↑ | 98% | 67% | 4.39" | 0 (Low) | 7:43 am | 8:21 pm |
| Sun Mar 29 |  | 36 / 14 °F | Mostly cloudy. | 32 °F | 2 mph | ↑ | 99% | 39% | 0.00" | 3 (Moderate) | 7:41 am | 8:23 pm |
| Mon Mar 30 |  | 40 / 24 °F | Light rain. Overcast. | 28 °F | 9 mph | ↑ | 99% | 61% | 0.73" | 0 (Low) | 7:38 am | 8:24 pm |
| Tue Mar 31 | | 42 / 29 °F | Afternoon clouds. | 32 °F | 6 mph | ↑ | 75% | 5% | 0.00" | 3 (Moderate) | 7:36 am | 8:26 pm |
| * Updated Tuesday, March 17, 2026 11:23:59 am Thunder Bay time - Weather by CustomWeather, © 2026 | ||||||||||||