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Weather in Rhinelander, Wisconsin for September 2026

Your guide to Rhinelander weather in September - trends and predictions

    Temperatures

  • In general, the average temperature in Rhinelander at the beginning of September is 16 °C. As the month progressed, temperatures tended to significantly warm up, reaching an average of 22.3 °C by the end of September.

  • Rain 🌧️

  • The climate of Rhinelander in September is notably wet, with an average of 12 rainy days, and a total of 99.1 mm of precipitation.

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Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
21°/12°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
74 %
Avg humidity

Rhinelander Weather September

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Temperatures trend during September in Rhinelander

See the weather trend as well as the moving average line

September weather in Rhinelander day by day

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Date Weather Temperatures Rain UV More
Sept. 1 Thundery outbreaks possible
Thundery outbreaks possible
23° /16° 0 mm 5
Sept. 2 Fog
Fog
22° /11° 7.7 mm 5
Sept. 3 Light rain shower
Light rain shower
16° /5° 11.1 mm 4
Sept. 4 Overcast
Overcast
12° /3° 2.7 mm 3
Sept. 5 Light rain
Light rain
10° /6° 34.5 mm 3
Sept. 6 Overcast
Overcast
14° /8° 0 mm 3
Sept. 7 Overcast
Overcast
15° /7° 0 mm 4
Sept. 8 Mist
Mist
17° /6° 0 mm 4
Sept. 9 Sunny
Sunny
21° /12° 12 mm 6
Sept. 10 Patchy rain possible
Patchy rain possible
23° /13° 3.6 mm 6
Sept. 11 Cloudy
Cloudy
24° /12° 0 mm 6
Sept. 12 Sunny
Sunny
23° /13° 0 mm 6
Sept. 13 Cloudy
Cloudy
27° /16° 3.5 mm 6
Sept. 14 Sunny
Sunny
26° /14° 0 mm 7
Sept. 15 Overcast
Overcast
28° /16° 0.1 mm 6
Sept. 16 Overcast
Overcast
29° /16° 0 mm 7
Sept. 17 Sunny
Sunny
26° /17° 1.6 mm 7
Sept. 18 Sunny
Sunny
24° /15° 9.6 mm 6
Sept. 19 Overcast
Overcast
20° /13° 0.7 mm 5
Sept. 20 Patchy rain possible
Patchy rain possible
20° /15° 1 mm 5
Sept. 21 Moderate rain at times
Moderate rain at times
22° /13° 5.1 mm 5
Sept. 22 Overcast
Overcast
19° /12° 6 mm 5
Sept. 23 Overcast
Overcast
19° /10° 0 mm 4
Sept. 24 Overcast
Overcast
20° /10° 0 mm 5
Sept. 25 Sunny
Sunny
21° /9° 0 mm 5
Sept. 26 Overcast
Overcast
20° /12° 0 mm 5
Sept. 27 Overcast
Overcast
24° /11° 0 mm 6
Sept. 28 Overcast
Overcast
25° /10° 0 mm 6
Sept. 29 Overcast
Overcast
24° /10° 0 mm 6
Sept. 30 Sunny
Sunny
22° /12° 0 mm 6
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Important Notice
Our weather forecast for Rhinelander 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 Rhinelander forecast closer to your planned date for the most up-to-date weather information.

Rhinelander in September - FAQ

What are the expected maximum and minimum temperatures in Rhinelander during September?

Enjoy moderate daytime temperatures of up to 21° and cooler nights around 12°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Rhinelander during September?

Moderate rainfall is anticipated in Rhinelander during September, with a total of 99.1 mm spread over approximately 12 days. Considering plans for rainy days is advisable.

What are the typical wind conditions in Rhinelander during September?

The average wind speed in Rhinelander during September is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Rhinelander

Explore the daily rainfall trends and prepare for Rhinelanders September weather 💧
Typically, Rhinelander has 12 rainy days in September with a total of 99.1 mm of rainfall.

UV exposure in Rhinelander during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️

Quick links

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Location coordinates Where is Rhinelander?

Get accurate weather forecasts for Rhinelander, located at latitude 45.637 and longitude -89.412. Stay updated with localized weather information tailored for Rhinelander.

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