Omaha, Nebraska weather in December

Averages from 2021–2025 (155 days of record).

Average high: 41°F
Average low: 24°F
Rainy days: ~5 per month
Total precipitation: 1.2 in
Warmest recorded: 70°F
Coldest recorded: -13°F

Expect December days in Omaha, Nebraska to top out around 41°F and cool to about 24°F overnight, with roughly 5 days of measurable rain across the month. In recent years December has ranged from -13°F to 70°F.

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Current Omaha, Nebraska forecast → · Historical data by Open-Meteo (ERA5).