Weather in Lancaster County, Nebraska for September 2025
Special Weather Statement - See hour by hour.
Until now, September 2025 in Lancaster County is cooler than usual, with temperatures averaging 25.8 °F, this is -4.9 °F below the typical seasonal average.
Expect cooler weather in the next days in Lancaster County with the forecast suggesting a temperature of 27.5 °F, lower than the historical average.
In general, the average temperature in Lancaster County at the beginning of September is 30.1 °F. As the month progressed, temperatures tended to moderately fall, reaching an average of 28.1 °F by the end of September.
Lancaster County experiences moderate rainfall in September, with an average of 7 rainy days and a total precipitation of 82.2 mm.
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Lancaster County Weather September
Temperatures trend during September in Lancaster County
September weather in Lancaster County day by day
| Date | Weather | Temperatures | Rain | UV | More |
|---|---|---|---|---|---|
| Sept. 1 |  Sunny | 30° /15° | 0 mm | 7 | |
| Sept. 2 | Sunny | 32° /14° | 0 mm | 8 | |
| Sept. 3 | Sunny | 31° /14° | 2 mm | 8 | |
| Sept. 4 | Sunny | 32° /12° | 0 mm | 8 | |
| Sept. 5 |  Partly cloudy | 31° /16° | 0 mm | 7 | |
| Sept. 6 | Partly cloudy | 27° /10° | 0 mm | 7 | |
| Sept. 7 | Sunny | 28° /9° | 0 mm | 7 | |
| Sept. 8 |  Patchy rain possible | 29° /13° | 1.3 mm | 7 | |
| Sept. 9 |  Overcast | 32° /15° | 0 mm | 8 | |
| Sept. 10 | Patchy rain possible | 31° /16° | 1.6 mm | 7 | |
| Sept. 11 | Light rain shower | 31° /16° | 7.5 mm | 7 | |
| Sept. 12 | Partly cloudy | 33° /15° | 0 mm | 8 | |
| Sept. 13 | Sunny | 33° /14° | 0 mm | 8 | |
| Sept. 14 | Sunny | 30° /14° | 0 mm | 7 | |
| Sept. 15 | Sunny | 35° /16° | 0 mm | 1.5 | |
| Sept. 16 | Patchy rain possible | 34° /17° | 0.2 mm | 1.4 | |
| Sept. 17 |  Moderate rain | 28° /17° | 17.6 mm | 1 | |
| Sept. 18 | Patchy rain possible | 24° /15° | 3.8 mm | 0.8 | |
| Sept. 19 | Partly cloudy | 25° /15° | 0.1 mm | 0 | |
| Sept. 20 | Sunny | 26° /14° | 0 mm | 5 | |
| Sept. 21 | Sunny | 31° /16° | 0 mm | 6 | |
| Sept. 22 | Patchy rain possible | 28° /17° | 0.2 mm | 5 | |
| Sept. 23 | Sunny | 25° /15° | 0 mm | 5 | |
| Sept. 24 | Sunny | 25° /11° | 0 mm | 5 | |
| Sept. 25 | Sunny | 26° /10° | 0 mm | 5 | |
| Sept. 26 | Sunny | 29° /11° | 0 mm | 5 | |
| Sept. 27 | Partly cloudy | 29° /14° | 0 mm | 6 | |
| Sept. 28 | Moderate rain | 20° /10° | 5.9 mm | 3 | |
| Sept. 29 |  Thundery outbreaks possible | 33° /16° | 1.8 mm | 8 | |
| Sept. 30 | Sunny | 35° /15° | 0.5 mm | 9 | |
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Lancaster County in September - FAQ
September rainfall patterns in Lancaster County
UV exposure in Lancaster County during September
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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.