Monmouth Weather Forecast
- 59
- 77
Mostly Sunny
- 48
- 72
Partly Sunny
- 53
- 68
Rain Showers
- 53
- 69
Chance Rain Showers
- 54
- 68
Chance Rain Showers
- 54
- 68
Rain Showers Likely
Today 28 Oct Warren
Sunny. Isolated Showers this afternoon. Highs in the upper 70s. South Winds 10 to 15 Mph. Chance of rain 20 percent.
Tonight 28 Oct Warren
Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 50s. South Winds 5 to 10 Mph with Gusts up to 25 Mph.
Monmouth Temperature Statistics
October Temperature
Galesburg Municipal Airport (11.2 miles)
Lowest 17 October, 2026
31.8 °FAverage October
59.8 °FHighest 12 October, 2026
87.3 °F
Climate (2021–2026)
Galesburg Municipal Airport (11.2 miles)
Average Low 2021–2026
41.9 °FAverage 2021–2026
52.2 °FAverage High 2021–2026
62.6 °F