Jacob Weather Forecast
- 40
- 47
Mostly Cloudy
- 25
- 46
Mostly Cloudy
- 34
- 41
Mostly Cloudy
- 23
- 50
Partly Sunny
- 13
- 39
Mostly Cloudy
- 15
- 26
Partly Sunny
- 24
- 38
Slight Chance Freezing Rain
Today 9 Dec Jackson
Partly sunny. Near steady temperature in the mid 40s. South Winds 15 to 20 Mph with Gusts up to 35 Mph.
Tonight 9 Dec Jackson
Mostly cloudy. Not as cool with Lows around 40. Southwest Winds 15 to 20 Mph with Gusts up to 35 Mph.
Jacob Temperature Statistics
December Temperature
Southern Illinois Airport (15.5 miles)
Lowest 4 December, 2025
19.9 °FAverage December
31 °FHighest 6 December, 2025
48.9 °F
Climate (2020–Present)
Southern Illinois Airport (15.5 miles)
Average Low 2020–2025
47.9 °FAverage 2020–2025
58.2 °FAverage High 2020–2025
68.8 °F