Walnut Grove
September
Weather in Walnut Grove for September 2025
Your guide to Walnut Grove weather in September - trends and predictions
In general, the average temperature in Walnut Grove at the beginning of September is 24.6 °C. As the month progressed, temperatures tended to significantly cool down, reaching an average of 15 °C by the end of September.
The climate of Walnut Grove in September is notably wet, with an average of 12 rainy days.
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18
Dry days
12
Rainy days
0
Snow days
20°/10°
Temperatures
9 km/h
Avg max wind
75 %
Avg humidity
Walnut Grove in September average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  28° | 2 26° | 3  20° | 4  22° | 5  25° | 6 25° | 7 26° |
| 8  24° | 9 23° | 10 21° | 11  19° | 12 18° | 13 17° | 14 20° |
| 15 22° | 16 22° | 17 17° | 18 17° | 19 13° | 20 17° | 21 20° |
| 22  18° | 23 17° | 24 20° | 25  17° | 26 12° | 27 13° | 28 13° |
| 29 14° | 30 16° |
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Temperatures trend during September in Walnut Grove
See the weather trend as well as the moving average line
September weather day by day
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| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| 1 Sept. | Partly cloudy | 28° /13° | 0 mm | 7 | |
| 2 Sept. | Partly cloudy | 26° /14° | 0 mm | 7 | |
| 3 Sept. | Light rain shower | 20° /13° | 0.6 mm | 5 | |
| 4 Sept. | Fog | 22° /12° | 0.2 mm | 6 | |
| 5 Sept. | Overcast | 25° /13° | 0 mm | 7 | |
| 6 Sept. | Partly cloudy | 25° /12° | 0 mm | 7 | |
| 7 Sept. | Partly cloudy | 26° /13° | 0 mm | 7 | |
| 8 Sept. | Cloudy | 24° /12° | 0 mm | 6 | |
| 9 Sept. | Cloudy | 23° /12° | 0.1 mm | 5 | |
| 10 Sept. | Overcast | 21° /12° | 0 mm | 5 | |
| 11 Sept. | Light drizzle | 19° /11° | 0.2 mm | 5 | |
| 12 Sept. | Mist | 18° /9° | 0 mm | 4 | |
| 13 Sept. | Fog | 17° /12° | 1.1 mm | 4 | |
| 14 Sept. | Partly cloudy | 20° /10° | 3.9 mm | 5 | |
| 15 Sept. | Partly cloudy | 22° /10° | 0.2 mm | 6 | |
| 16 Sept. | Overcast | 22° /9° | 0 mm | 6 | |
| 17 Sept. | Overcast | 17° /10° | 1.5 mm | 4 | |
| 18 Sept. | Patchy rain possible | 17° /10° | 0.4 mm | 4 | |
| 19 Sept. | Mist | 13° /9° | 3.3 mm | 3 | |
| 20 Sept. | Mist | 17° /9° | 0.3 mm | 4 | |
| 21 Sept. | Partly cloudy | 20° /7° | 0 mm | 5 | |
| 22 Sept. | Sunny | 18° /10° | 8.9 mm | 5 | |
| 23 Sept. | Light rain shower | 17° /11° | 5.3 mm | 4 | |
| 24 Sept. | Light drizzle | 20° /10° | 5.4 mm | 5 | |
| 25 Sept. | Moderate or heavy rain with thunder | 17° /11° | 55 mm | 4 | |
| 26 Sept. | Moderate or heavy rain with thunder | 12° /9° | 33 mm | 3 | |
| 27 Sept. | Light drizzle | 13° /10° | 13.3 mm | 3 | |
| 28 Sept. | Moderate or heavy rain with thunder | 13° /8° | 10.8 mm | 4 | |
| 29 Sept. | Partly cloudy | 14° /6° | 0 mm | 4 | |
| 30 Sept. | Cloudy | 16° /4° | 0 mm | 5 | |
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Important Notice
Our weather forecast for Walnut Grove 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 Walnut Grove forecast closer to your planned date for the most up-to-date weather information.
Walnut Grove in September - FAQ
What are the expected maximum and minimum temperatures in Walnut Grove during September?
Enjoy moderate daytime temperatures of up to 20° and cooler nights around 10°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in Walnut Grove during September?
Significant rainfall exceeding 121.7 mm is expected in Walnut Grove during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in Walnut Grove during September?
The average wind speed in Walnut Grove during September is 9 km/h, suggesting breezy to windy conditions, depending on your activities.
September rainfall patterns in Walnut Grove
Explore the daily rainfall trends and prepare for Walnut Groves September weather 💧
UV exposure in Walnut Grove during September
Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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