Mark Weather Forecast
- 70
- 91
Mostly Cloudy
- 73
- 91
Chance Thunderstorms
- 66
- 87
Slight Chance Thunderstorms
- 61
- 80
Partly Sunny
- 60
- 82
Mostly Sunny
- 64
- 84
Mostly Sunny
Today 17 Aug Putnam
Partly sunny. Humid with Highs in the upper 80s. South Winds around 5 Mph with Gusts up to 20 Mph, becoming east in the afternoon.
Tonight 17 Aug Putnam
Partly cloudy. Humid with Lows in the lower 70s. East Winds 5 to 10 Mph.
Mark Temperature Statistics
August Temperature
Illinois Valley Regional Airport (7.5 miles)
Lowest 3 August, 2025
53.6 °FAverage August
73.7 °FHighest 9 August, 2025
89.6 °F
Climate (2020–Present)
Illinois Valley Regional Airport (7.5 miles)
Average Low 2020–2025
43.2 °FAverage 2020–2025
52.6 °FAverage High 2020–2025
62 °F