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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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Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
20°/10°
Temperatures
Average wind speed
9 km/h
Avg max wind
Average humidity
75 %
Avg humidity

Walnut Grove in September average weather

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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
Partly cloudy
28° /13° 0 mm 7
2 Sept. Partly cloudy
Partly cloudy
26° /14° 0 mm 7
3 Sept. Light rain shower
Light rain shower
20° /13° 0.6 mm 5
4 Sept. Fog
Fog
22° /12° 0.2 mm 6
5 Sept. Overcast
Overcast
25° /13° 0 mm 7
6 Sept. Partly cloudy
Partly cloudy
25° /12° 0 mm 7
7 Sept. Partly cloudy
Partly cloudy
26° /13° 0 mm 7
8 Sept. Cloudy
Cloudy
24° /12° 0 mm 6
9 Sept. Cloudy
Cloudy
23° /12° 0.1 mm 5
10 Sept. Overcast
Overcast
21° /12° 0 mm 5
11 Sept. Light drizzle
Light drizzle
19° /11° 0.2 mm 5
12 Sept. Mist
Mist
18° /9° 0 mm 4
13 Sept. Fog
Fog
17° /12° 1.1 mm 4
14 Sept. Partly cloudy
Partly cloudy
20° /10° 3.9 mm 5
15 Sept. Partly cloudy
Partly cloudy
22° /10° 0.2 mm 6
16 Sept. Overcast
Overcast
22° /9° 0 mm 6
17 Sept. Overcast
Overcast
17° /10° 1.5 mm 4
18 Sept. Patchy rain possible
Patchy rain possible
17° /10° 0.4 mm 4
19 Sept. Mist
Mist
13° /9° 3.3 mm 3
20 Sept. Mist
Mist
17° /9° 0.3 mm 4
21 Sept. Partly cloudy
Partly cloudy
20° /7° 0 mm 5
22 Sept. Sunny
Sunny
18° /10° 8.9 mm 5
23 Sept. Light rain shower
Light rain shower
17° /11° 5.3 mm 4
24 Sept. Light drizzle
Light drizzle
20° /10° 5.4 mm 5
25 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
17° /11° 55 mm 4
26 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
12° /9° 33 mm 3
27 Sept. Light drizzle
Light drizzle
13° /10° 13.3 mm 3
28 Sept. Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
13° /8° 10.8 mm 4
29 Sept. Partly cloudy
Partly cloudy
14° /6° 0 mm 4
30 Sept. Cloudy
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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Location coordinates Where is Walnut Grove?

Get accurate weather forecasts for Walnut Grove, located at latitude 49.165 and longitude -122.64. Stay updated with localized weather information tailored for Walnut Grove.

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