Omaha, Nebraska weather in January

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

Average high

33°F

Average low

17°F

Rainy days

~5 per month

Total precipitation

1.3 in

Warmest recorded

56°F

Coldest recorded

-21°F

Expect January days in Omaha, Nebraska to top out around 33°F and cool to about 17°F overnight, with roughly 5 days of measurable rain across the month. In recent years January has ranged from -21°F to 56°F.