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United States weather

Weather in Lancaster County, Nebraska for September 2026

Your guide to Lancaster County weather in September - trends and predictions

    Temperatures

  • Until now, September 2026 in Lancaster County has been nearly identical to the historical average, with a temperature of 31.1 °F (showing only a slight deviation of 0.2 °F).

  • The forecast for the next days in Lancaster County predicts a temperature of 21.5 °F, which is cooler than the historical average.

  • In general, the average temperature in Lancaster County at the beginning of September is 32.3 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 25.4 °F by the end of September.

    • Rain 🌧️

  • The climate of Lancaster County in September is notably wet, with an average of 12 rainy days, and a total of 104.2 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
18
Dry days
Average rainy days
12
Rainy days
Average snowy days
0
Snow days
Average temperatures
30°/14°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
59 %
Avg humidity

Lancaster County Weather September

Move between months or click on a day
August
October
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Sunny
32°
2
Sunny
34°
3
Sunny
33°
4
Sunny
34°
5
Partly cloudy
33°
6
Partly cloudy
30°
7
Sunny
30°
8
Sunny
32°
9
Overcast
31°
10
Patchy rain possible
31°
11
Light rain shower
31°
12
Partly cloudy
31°
13
Sunny
30°
14
Sunny
31°
15
Overcast
30°
16
Fog
30°
17
Sunny
28°
18
Sunny
32°
19
Thundery outbreaks possible
30°
20
Thundery outbreaks possible
26°
21
Thundery outbreaks possible
28°
22
Overcast
18°
23
Overcast
23°
24
Overcast
21°
25
Overcast
27°
26
Patchy rain possible
30°
27
Overcast
25°
28
Overcast
28°
29
Sunny
22°
30
Sunny
25°

Temperatures trend during September in Lancaster County

See the weather trend as well as the moving average line

September weather in Lancaster County day by day

Click on a date for more information
August October
Date Weather Temperatures Rain UV More
Sept. 1 Sunny
Sunny
 32° /17° 0 mm 8
Sept. 2 Sunny
Sunny
 34° /16° 0 mm 8
Sept. 3 Sunny
Sunny
 33° /16° 1.5 mm 8
Sept. 4 Sunny
Sunny
 34° /15° 0.2 mm 8
Sept. 5 Partly cloudy
Partly cloudy
 33° /18° 0 mm 8
Sept. 6 Partly cloudy
Partly cloudy
 30° /13° 0.1 mm 6
Sept. 7 Sunny
Sunny
 30° /12° 0 mm 7
Sept. 8 Sunny
Sunny
 32° /16° 11.1 mm 6
Sept. 9 Overcast
Overcast
 31° /17° 6.3 mm 7
Sept. 10 Patchy rain possible
Patchy rain possible
 31° /16° 1.2 mm 7
Sept. 11 Light rain shower
Light rain shower
 31° /16° 5.6 mm 7
Sept. 12 Partly cloudy
Partly cloudy
 31° /15° 0 mm 7
Sept. 13 Sunny
Sunny
 30° /14° 3.5 mm 7
Sept. 14 Sunny
Sunny
 31° /14° 3.5 mm 6
Sept. 15 Overcast
Overcast
 30° /16° 11.4 mm 6
Sept. 16 Fog
Fog
 30° /16° 0.9 mm 6
Sept. 17 Sunny
Sunny
 28° /15° 5 mm 5
Sept. 18 Sunny
Sunny
 32° /17° 13.4 mm 7
Sept. 19 Thundery outbreaks possible
Thundery outbreaks possible
 30° /16° 8.4 mm 6
Sept. 20 Thundery outbreaks possible
Thundery outbreaks possible
 26° /14° 6.5 mm 5
Sept. 21 Thundery outbreaks possible
Thundery outbreaks possible
 28° /14° 7.5 mm 5
Sept. 22 Overcast
Overcast
 18° /11° 0 mm 4.1
Sept. 23 Overcast
Overcast
 23° /11° 0 mm 5.6
Sept. 24 Overcast
Overcast
 21° /14° 1.8 mm 5.1
Sept. 25 Overcast
Overcast
 27° /16° 2.7 mm 5.8
Sept. 26 Patchy rain possible
Patchy rain possible
 30° /18° 2.2 mm 8
Sept. 27 Overcast
Overcast
 25° /16° 0 mm 7
Sept. 28 Overcast
Overcast
 28° /18° 1.3 mm 7
Sept. 29 Sunny
Sunny
 22° /16° 27.3 mm 6
Sept. 30 Sunny
Sunny
 25° /15° 27.7 mm 6
Next
Important Notice
Our weather forecast for Lancaster County 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 Lancaster County forecast closer to your planned date for the most up-to-date weather information.
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Lancaster County in September - FAQ

What are the expected maximum and minimum temperatures in Lancaster County during September?
Expect warm days with temperatures around 30°, cooling to mild conditions of 14° after sunset. Perfect for those who enjoy warm weather.

How much rainfall should be expected in Lancaster County during September?
Significant rainfall exceeding 104.2 mm is expected in Lancaster County during September, occurring over more than 12 days. Preparing for wet conditions is recommended in your planning.

What are the typical wind conditions in Lancaster County during September?
The average wind speed in Lancaster County during September is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

September rainfall patterns in Lancaster County

Explore the daily rainfall trends and prepare for Lancaster Countys September weather 💧
Typically, Lancaster County has 12 rainy days in September with a total of 104.2 mm of rainfall.

UV exposure in Lancaster County during September

Stay informed about UV levels for safe outdoor activities throughout the month of September ☀️
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Location coordinates Where is Lancaster County?

Get accurate weather forecasts for Lancaster County, located at latitude 40.8 and longitude -96.667. Stay updated with localized weather information tailored for Lancaster County.

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