Grand Portage Rainfall Forecast
- 40%
- 50%
- No Rain
- 15%
- 40%
- 30%
- 5%
Grand Portage Rainfall Statistics
August Rainfall
Grand Marais/Cook County Airport (33.6 miles)
Total Rainfall August
0.01inDaily Average August
0inWettest Day 15 August, 2026
0.01inWet Days August
1/17 (6%)
Climate (2021–2025)
Grand Marais/Cook County Airport (33.6 miles)
Annual Average 2021–2025
12.6inMonthly Average 2021–2026
0.4inDaily Average 2021–2026
0.01inWettest Day 20 September, 2021
1.3in