Seaton Weather Forecast
- 72
- 95
Slight Chance Thunderstorms
- 64
- 85
Mostly Sunny
- 65
- 86
Sunny
- 68
- 87
Chance Thunderstorms
- 66
- 80
Rain Showers Likely
- 64
- 82
Slight Chance Thunderstorms
Today 27 Jul Mercer
Mostly sunny with a slight chance of Showers and Thunderstorms. Hot. Near steady temperature in the lower 90s. Southwest Winds 10 to 15 Mph. Chance of rain 20 percent. Heat index Values up to 117.
Tonight 27 Jul Mercer
Mostly clear. A slight chance of Showers and Thunderstorms in the evening. Patchy smoke after midnight. Humid with Lows in the lower 70s. West Winds 5 to 10 Mph with Gusts up to 20 Mph, becoming north after midnight. Chance of rain 20 percent. Heat index Values up to 116 early in the evening.
Seaton Temperature Statistics
July Temperature
Galesburg Municipal Airport (22.4 miles)
Lowest 23 July, 2026
53.6 °FAverage July
75.3 °FHighest 18 July, 2026
91.8 °F
Climate (2021–2026)
Galesburg Municipal Airport (22.4 miles)
Average Low 2021–2026
41.7 °FAverage 2021–2026
52.1 °FAverage High 2021–2026
62.5 °F