Hartline Air Strip STOLport Weather Forecast
- 60
- 81
Breezy
- 39
- 72
Chance Thunderstorms
- 36
- 52
Mostly Sunny
- 51
- 66
Mostly Sunny
- 54
- 72
Mostly Cloudy
- 36
- 70
Chance Rain Showers
Today 14 Mar Union
Mostly sunny and breezy. Highs in the lower 80s. South Winds 10 to 15 Mph with Gusts up to 30 Mph, increasing to 15 to 25 Mph with Gusts up to 45 Mph this afternoon.
Tonight 14 Mar Union
Thunderstorms likely. Showers, breezy with Lows in the lower 60s. South Winds 20 to 25 Mph with Gusts up to 45 Mph. Chance of rain 90 percent.
Hartline Air Strip STOLport Temperature Statistics
March Temperature
Southern Illinois Airport (21.7 miles)
Lowest 2 March, 2025
23.8 °FAverage March
47.3 °FHighest 11 March, 2025
75 °F
Climate (2020–Present)
Southern Illinois Airport (21.7 miles)
Average Low 2020–2025
47.6 °FAverage 2020–2025
57.7 °FAverage High 2020–2025
68.4 °F