September weather forecast
Indiana, USA

Indiana in September is a kaleidoscope of colors and a harbinger of the imminent fall season. The month witnesses a notable shift in temperatures, generally ranging from 55°F (12.8°C) to 78°F (25.6°C). The northern regions, influenced by their proximity to Lake Michigan, start to cool more rapidly than the southern parts, where summer warmth lingers a little longer.

Rainfall in September slightly decreases compared to the preceding months, and the nature of the precipitation begins to change. While there are still occasional thunderstorms, prolonged periods of gentle rain become more common, nourishing the landscapes and aiding in the transformation of foliage.

Contrasted with August, September's climate is palpably cooler, with the declining angle of the sun contributing to shorter and less intense daylight. The dwindling warmth of summer is replaced by the crispness of early fall, especially evident in the cool mornings and evenings.

The luminosity of September is distinct, with the sun casting a golden hue over Indiana. The plains, especially those dedicated to agriculture, start showing signs of harvest readiness. Simultaneously, forests, notably in the southern hilly regions, commence their mesmerizing transition, with leaves changing from verdant green to shades of amber, orange, and red.

Outdoor pursuits in September shift in nature. While water-based activities at Lake Michigan start to wane, the focus turns to terrestrial adventures. Hiking trails, particularly in the Hoosier National Forest and other wooded areas, attract enthusiasts keen on experiencing the early fall foliage. September also beckons agritourism enthusiasts, with farms offering apple picking and the onset of corn mazes.

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• Indianapolis - September »
  On the first day of September sunrise is at 7:13 am and sunset at 8:15 pm. As Indianapolis welcomes September, the average high-temperature records at a still warm 75.9°F (24.4°C), marking an insignificant deviation from the prior month.
• Fort Wayne - September »
  On the first day of September in Fort Wayne sunrise is at 7:07 am and sunset at 8:12 pm. In Fort Wayne, snow does not fall in June through September.
• Evansville - September »
  On the first day of September in Evansville, sunrise is at 6:20 am and sunset at 7:19 pm. In September, Evansville records 1.26" (32mm) of rainfall, making it the driest month.
• South Bend - September »
  On the first day of September in South Bend, sunrise is at 7:11 am and sunset at 8:17 pm. On the first day of September in South Bend, sunrise is at 7:11 am and sunset at 8:17 pm.
• Carmel - September »
  In Carmel during September, the rain falls for 11 days and regularly aggregates up to 1.02" (26mm) of precipitation. In Carmel during September, the rain falls for 11 days and regularly aggregates up to 1.02" (26mm) of precipitation.
• Bloomington - September »
  How many days does it rain in September in Bloomington? In Bloomington, in September, it is raining for 12.4 days, with typically 1.65" (42mm) of accumulated precipitation.
• Fishers - September »
  In Fishers in September, during 12.6 rainfall days, 1.54" (39mm) of precipitation is typically accumulated. In Fishers, in September, during 12.6 rainfall days, 1.54" (39mm) of precipitation is typically accumulated.
• Hammond - September »
  On the last day of September, in Hammond, Indiana, sunrise is at 6:46 am and sunset at 6:32 pm CDT. With September's onset, the weather in Hammond reveals a slight temperature decrease, transitioning from a warm 79.7°F (26.5°C) in August to a still moderately hot 73.6°F (23.1°C).
• Gary - September »
  In Gary during September, the rain falls for 13.8 days and regularly aggregates up to 2.17" (55mm) of precipitation. In Gary, during September, the rain falls for 13.8 days and regularly aggregates up to 2.17" (55mm) of precipitation.
• Lafayette - September »
  In Lafayette in September, during 11.2 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. On the first day of September in Lafayette, Indiana, sunrise is at 7:15 am and sunset at 8:18 pm.
• Muncie - September »
  In Muncie, during September, the rain falls for 13.7 days and regularly aggregates up to 1.81" (46mm) of precipitation. On the first day of September in Muncie, sunrise is at 7:09 am and sunset at 8:12 pm.
• Terre Haute - September »
  The month with the least rainfall in Terre Haute is September, when the rain falls for 12.5 days and typically collects 1.81" (46mm) of precipitation. In Terre Haute, Indiana, during September, the rain falls for 12.5 days and regularly aggregates up to 1.81" (46mm) of precipitation.