Rolla (MO)
September
Weather in Rolla, Missouri for September 2026
Your guide to Rolla weather in September - trends and predictions
So far, September 2026 in Rolla shows a warmer trend than usual by 2.7 °F.
An exceptional deviation from the historical average is forecasted for next days of September 2026 in Rolla with the forecasted temperature being 23.6 °F, much lower than usual.
In general, the average temperature in Rolla at the beginning of September is 30.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 27.3 °F by the end of September.
The climate of Rolla in September is notably wet, with an average of 11 rainy days, and a total of 391.9 mm of precipitation.
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Temperatures
Rain 🌧️
More
19
Dry days
11
Rainy days
0
Snow days
27°/16°
Temperatures
15 km/h
Avg max wind
72 %
Avg humidity
Rolla Weather September
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Temperatures trend during September in Rolla
See the weather trend as well as the moving average line
September weather in Rolla day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Overcast | 31° /20° | 0 mm | 7 | |
| Sept. 2 | Overcast | 31° /21° | 0 mm | 7 | |
| Sept. 3 |  Fog | 30° /18° | 0 mm | 7 | |
| Sept. 4 |  Light rain shower | 32° /20° | 4.9 mm | 9 | |
| Sept. 5 |  Moderate or heavy rain shower | 30° /18° | 13.6 mm | 7 | |
| Sept. 6 | Fog | 30° /17° | 4.8 mm | 8 | |
| Sept. 7 |  Partly cloudy | 29° /15° | 0 mm | 9 | |
| Sept. 8 |  Cloudy | 31° /14° | 0 mm | 9 | |
| Sept. 9 | Cloudy | 29° /18° | 2 mm | 7 | |
| Sept. 10 | Overcast | 26° /17° | 51.3 mm | 4 | |
| Sept. 11 |  Sunny | 30° /18° | 0.6 mm | 5 | |
| Sept. 12 | Sunny | 34° /19° | 0.1 mm | 8 | |
| Sept. 13 | Overcast | 32° /21° | 0 mm | 6 | |
| Sept. 14 |  Thundery outbreaks possible | 33° /19° | 0.7 mm | 8 | |
| Sept. 15 | Thundery outbreaks possible | 34° /23° | 0.9 mm | 7 | |
| Sept. 16 | Sunny | 33° /21° | 0.6 mm | 6 | |
| Sept. 17 | Sunny | 33° /20° | 0.3 mm | 7 | |
| Sept. 18 | Thundery outbreaks possible | 33° /20° | 0.2 mm | 7 | |
| Sept. 19 | Thundery outbreaks possible | 32° /21° | 0.7 mm | 6 | |
| Sept. 20 |  Heavy rain at times | 30° /19° | 8.1 mm | 4 | |
| Sept. 21 |  Moderate rain | 24° /18° | 61.9 mm | 2 | |
| Sept. 22 |  Patchy light rain with thunder | 24° /17° | 7.2 mm | 3 | |
| Sept. 23 | Moderate rain | 22° /14° | 5.2 mm | 5 | |
| Sept. 24 | Light rain shower | 22° /15° | 91.9 mm | 4 | |
| Sept. 25 | Fog | 24° /14° | 3.5 mm | 4 | |
| Sept. 26 | Overcast | 27° /16° | 0.2 mm | 5.8 | |
| Sept. 27 | Partly cloudy | 27° /16° | 0.3 mm | 4.7 | |
| Sept. 28 | Sunny | 28° /16° | 0 mm | 6.3 | |
| Sept. 29 | Overcast | 31° /18° | 0 mm | 5.3 | |
| Sept. 30 | Overcast | 32° /21° | 0.7 mm | 3.9 | |
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Important Notice
Our weather forecast for Rolla in September is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Rolla forecast closer to your planned date for the most up-to-date weather information.
Change Month
Rolla in September - FAQ
What are the expected maximum and minimum temperatures in Rolla during September?
During September, expect a variety of temperatures with highs around 27° and lows near 16°, suitable for diverse activities and preferences.
How much rainfall should be expected in Rolla during September?
Significant rainfall exceeding 391.9 mm is expected in Rolla during September, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Rolla during September?
The average wind speed in Rolla during September is 15 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Rolla
Explore the daily rainfall trends and prepare for Rollas September weather 💧
Typically, Rolla has 11 rainy days in September with a total of 391.9 mm of rainfall.
UV exposure in Rolla during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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