Marengo Weather Forecast
- 65
- 84
Chance Thunderstorms
- 68
- 81
Chance Rain Showers
- 70
- 84
Rain Showers
- 65
- 83
Rain Showers Likely
- 67
- 82
Chance Rain Showers
- 71
- 87
Chance Thunderstorms
Today 17 Jul Morrow
Partly sunny with a chance of Showers and Thunderstorms. Humid with Highs in the mid 80s. West Winds 10 to 15 Mph. Chance of rain 50 percent.
Tonight 17 Jul Morrow
Mostly cloudy. A chance of Showers and Thunderstorms, mainly in the evening. Humid with Lows in the mid 60s. Northwest Winds 5 to 10 Mph, becoming north after midnight. Chance of rain 50 percent.
Marengo Temperature Statistics
July Temperature
Knox County Airfield (15.5 miles)
Lowest 3 July, 2025
62.6 °FAverage July
75.5 °FHighest 4 July, 2025
89.6 °F
Climate (2020–Present)
Knox County Airfield (15.5 miles)
Average Low 2020–2025
43.4 °FAverage 2020–2025
52.2 °FAverage High 2020–2025
61.6 °F