Lincoln, NE, Sept. 2026 Avg. low was 10.6 deg ABOVE Normal. All the daily low temperatures were ABOVE Normal. Avg. high was 2.2 degrees ABOVE Normal. Sept. 2026 monthly avg. was 6.4 degrees ABOVE Normal & the 4th warmest on record (1887-2026, 140 years of data) lincolnweather.unl.edu/september-20...