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Arrowhead Lake, MN Weather Forecast
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Arrowhead Lake Weather Forecast
| REST OF TONIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
 |  |  |  | |  |  | | |  | | |
| Clear | Chance of T-Storm | Chance of T-Storm | Partly Sunny | Mostly Clear | Mostly Sunny | Chance of Showers | Mostly Sunny | Chance of Showers | Chance of Showers | Chance of Showers | Chance of Showers |
| Lo: 35°FLo: 2°C | Hi: 60°FHi: 16°C | Lo: 49°FLo: 9°C | Hi: 61°FHi: 16°C | Lo: 40°FLo: 4°C | Hi: 65°FHi: 18°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 69°FHi: 21°C Lo: 49°FLo: 9°C | Hi: 65°FHi: 18°C |
| POP: 100% | POP: 100% | POP: 20% | POP: 20% | POP: 40% | POP: 40% | POP: 20% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1216 AM CDT Mon Sep 14 2026 
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Issued: 645 PM CDT Sun Sep 13 2026
Key Messages
- Frost is expected tonight into early Monday morning for much of northeast MN and northwest WI. Frost Advisories are in effect. A couple hours with patchy temperatures around freezing are also possible early Monday morning.
- Widespread showers with embedded thunderstorms are expected Monday into Monday night. Rainfall potential of 1" or greater (40-80% chance) for areas south of the Iron Range.
- Near-normal high temperatures in the mid 60s to low 70s for the later half of the work week ...