Mason City Weather Forecast
- 76
- 92
Slight Chance Thunderstorms
- 68
- 93
Patchy Smoke
- 66
- 86
Mostly Sunny
- 67
- 88
Mostly Sunny
- 66
- 86
Chance Thunderstorms
- 64
- 82
Chance Rain Showers
Today 26 Jul Cerro Gordo
Partly sunny. Near steady temperature in the lower 90s. South Winds 5 to 10 Mph. Heat index Values up to 116.
Tonight 26 Jul Cerro Gordo
Partly cloudy with a slight chance of Showers and Thunderstorms. Humid with Lows in the mid 70s. South Winds 5 to 10 Mph. Chance of rain 20 percent. Heat index Values up to 117 early in the evening.
Mason City Temperature Statistics
July Temperature
Mason City Municipal Airport (6.2 miles)
Lowest 22 July, 2026
53.7 °FAverage July
74 °FHighest 16 July, 2026
90.6 °F
Climate (2021–2026)
Mason City Municipal Airport (6.2 miles)
Average Low 2021–2026
37.2 °FAverage 2021–2026
47.9 °FAverage High 2021–2026
58.6 °F