Agate Harbor Weather Forecast
- 61
- 71
Rain Showers Likely
- 59
- 68
Chance Rain Showers
- 56
- 66
Partly Sunny
- 59
- 67
Partly Sunny
- 64
- 73
Chance Rain Showers
- 63
- 72
Chance Rain Showers
Today 25 Aug Keweenaw
Mostly cloudy. A chance of Showers late this Morning, then a chance of Showers and Thunderstorms this afternoon. Highs in the lower 70s. Temperature falling into the middle 60s this afternoon. South Winds 5 to 10 Mph, becoming southeast this afternoon. Chance of rain 50 percent.
Tonight 25 Aug Keweenaw
Showers likely with a chance of Thunderstorms in the Evening, then a chance of Showers with a slight chance of Thunderstorms after midnight. Cloudy. Lows around 59. South Winds 5 to 10 Mph, becoming southwest after midnight. Chance of rain 70 percent.
Agate Harbor Temperature Statistics
August Temperature
Copper Harbor (8.7 miles)
Lowest 1 August, 2026
53.1 °FAverage August
63.8 °FHighest 6 August, 2026
81 °F
Climate (2021–2026)
Copper Harbor (8.7 miles)
Average Low 2021–2026
38.2 °FAverage 2021–2026
44.4 °FAverage High 2021–2026
50.5 °F