September weather forecast
Missouri, USA

September in Missouri heralds the transition from summer to autumn, with temperatures beginning to moderate and the humidity starting to decrease. The minimum temperature ranges from 50°F (10°C) to 60°F (15.6°C), and the maximum temperature averages between 70°F (21.1°C) to 80°F (26.7°C). The drop in temperature from the hot summer months is noticeable, paving the way for the more comfortable conditions of the fall season.

Precipitation in September continues the pattern of occasional rain and thunderstorms, but the incidence of extreme weather events tends to decline. The rainfall is less intense compared to the summer months, and the overall weather begins to stabilize.

The decrease in humidity and the gentle cooling of temperatures create a pleasant climate across the state, allowing for an array of outdoor activities. September sees the leaves beginning to change colors, especially towards the end of the month, adding to the scenic beauty of Missouri's landscapes.

Sunshine is still plentiful in September, though the days continue to shorten as the state moves towards the fall equinox. The combination of sun, moderate temperatures, and decreasing humidity provides a refreshing contrast to the vigor and intensity of the summer.

The geographical variations within Missouri, including the humid continental climate in the north and the humid subtropical climate in the south, contribute to a nuanced transition into autumn. Regions like the Bootheel may still experience somewhat warmer conditions, reflecting the overall diversity of the state's climate.

September stands as a transitional month in Missouri, offering a blend of summer's warmth with autumn's growing mildness. The shift in weather creates a welcoming and invigorating atmosphere, encouraging exploration and appreciation of the state's natural beauty as it prepares for the coming fall.

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• Kansas City - September »
  In Kansas City in September, it is raining for 8.1 days, with typically 4.17" (106mm) of accumulated precipitation. In Kansas City, in September, it is raining for 8.1 days, with typically 4.17" (106mm) of accumulated precipitation.
• St. Louis - September »
  Louis in September, during 7.4 rainfall days, 3.15" (80mm) of precipitation is typically accumulated. Louis, in September, during 7.4 rainfall days, 3.15" (80mm) of precipitation is typically accumulated.
• Springfield - September »
  In Springfield in September, during 14.3 rainfall days, 2.44" (62mm) of precipitation is typically accumulated. On the first day of September in Springfield sunrise is at 6:43 am and sunset at 7:42 pm.
• Columbia - September »
  As Columbia transitions from the heat of summer to the cooler fall season, September offers an ideal climate for travel and exploration. In September, in Columbia the rain falls for 8.2 days.
• Independence - September »
  In Independence, during September, the rain falls for 12.1 days and regularly aggregates up to 2.36" (60mm) of precipitation. On the first day of September in Independence, sunrise is at 6:46 am and sunset at 7:48 pm.
• Lee's Summit - September »
  In Lee's Summit snow does not fall in June through September. In Lee's Summit, during September, the rain falls for 12.3 days and regularly aggregates up to 2.72" (69mm) of precipitation.
• O'Fallon - September »
  On the last day of September, in O'Fallon, sunrise is at 6:57 am and sunset at 6:47 pm CDT. September ushers in a minor alteration in O'Fallon's climate, with the average high-temperature moving from August's moderately hot 85.5°F (29.7°C) to a still warm 79.5°F (26.4°C).
• Blue Springs - September »
  
• Florissant - September »
  In Florissant, in September, during 12.4 rainfall days, 2.01" (51mm) of precipitation is typically accumulated. In Florissant, during September, the rain falls for 12.4 days and regularly aggregates up to 2.01" (51mm) of precipitation.
• Joplin - September »
  In Joplin, in September, it is raining for 12.5 days, with typically 2.72" (69mm) of accumulated precipitation. What time are sunrise and sunset in September in Joplin?
• Chesterfield - September »
  On the first day of September in Chesterfield, Missouri, sunrise is at 6:31 am and sunset at 7:33 pm. On the first day of September in Chesterfield, sunrise is at 6:31 am and sunset at 7:33 pm.
• Jefferson City - September »
  In Jefferson City during September, the rain falls for 7 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Jefferson City, during September, the rain falls for 7 days and regularly aggregates up to 0.55" (14mm) of precipitation.