Fairfax Weather Forecast
- 47
- 68
Increasing Clouds
- 50
- 71
Partly Sunny
- 52
- 70
Mostly Cloudy
- 54
- 69
Chance Rain Showers
- 54
- 70
Chance Rain Showers
- 54
- 73
Slight Chance Rain Showers
Today 23 May Marion
Sunny toward Daybreak, then becoming partly cloudy. Highs in the upper 60s. West Winds around 5 Mph, increasing to 10 to 15 Mph.
Tonight 23 May Marion
Partly cloudy. Lows in the mid 40s. Northwest Winds around 5 Mph, becoming northeast toward daybreak.
Fairfax Temperature Statistics
May Temperature
Indianapolis International Airport (4.3 miles)
Lowest 9 May, 2025
43.6 °FAverage May
64.3 °FHighest 15 May, 2025
87.7 °F
Climate (2020–Present)
Indianapolis International Airport (4.3 miles)
Average Low 2020–2025
46.5 °FAverage 2020–2025
55.4 °FAverage High 2020–2025
64.7 °F