Portage Lake Weather Forecast
- 63
- 84
Slight Chance Thunderstorms
- 55
- 77
Chance Thunderstorms
- 57
- 77
Mostly Sunny
- 60
- 77
Partly Sunny
- 63
- 80
Slight Chance Thunderstorms
- 62
- 79
Partly Sunny
Today 26 Jul Houghton
Very warm. Mostly sunny with a slight chance of Showers and Thunderstorms. Highs around 87 inland to around 78 at the shore. Temperature falling into the upper 70s in the afternoon. Light southwest Winds, becoming northwest 5 to 10 Mph in the afternoon. Chance of rain 20 percent.
Tonight 26 Jul Houghton
Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then cloudy with a slight chance of Showers after midnight. Locally heavy rainfall possible after midnight. Lows around 62. Light east Winds. Chance of rain 20 percent.
Portage Lake Temperature Statistics
July Temperature
Houghton County Memorial Airport (6.2 miles)
Lowest 6 July, 2026
46 °FAverage July
68.5 °FHighest 13 July, 2026
91.9 °F
Climate (2021–2026)
Houghton County Memorial Airport (6.2 miles)
Average Low 2021–2026
35.9 °FAverage 2021–2026
44 °FAverage High 2021–2026
52 °F