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Monthly
Forecasts
Current
Hourly
7 Days
14 Days
Monthly
°C
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Gretna, MO
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January
Average Temperature
High
7°
Feels 6
Low
-3°
Feels -7
Average Precipitation
5 Days
Rain amount
26.2mm
Snow amount
12.5cm
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Daily Historical Averages
January 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
14°
13
17°
14
8°
15
4°
16
8°
17
1°
18
5°
19
6°
20
7°
21
14°
22
16°
23
10°
24
2°
25
1°
26
5°
27
28
29
30
31
Forecast
Monday, January 12, 2026
Day
14°
Feels 13
Wind
16 km/h SW
Gust
24 km/h
Humidity
26%
P.O.P
10%
Night
7°
Feels 3
Wind
19 km/h W
Gust
29 km/h
Humidity
52%
P.O.P
0%
Historical Averages
Jan 12
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.