Annual mean 10°C · wettest around April · prevailing wind SW
Warmest
25.3 °C
Coldest
-3.4 °C
Wettest
21%
Windiest
5.8 m/s
Prevailing
SW
5.0 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in South Milwaukee over the whole year is 10°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -6°C. South Milwaukee has no sharply defined rainy season: the chance of rain on a given day runs from 25% in February, the driest month, to 34% in April, the wettest. Winds in South Milwaukee are highest in February, averaging 4.5 m/s (16 km/h), and lightest in August, at 3.2 m/s (12 km/h). The prevailing wind is from the SW. The clearest skies in South Milwaukee come in July, when the sky is typically 41% covered; January is the cloudiest month, at 66%.
Month by month South Milwaukee climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
-3°C
-6°C
-9°C
29%
66%
4.3 m/s
0
0
1
February
-1°C
-4°C
-7°C
25%
55%
4.5 m/s
0
0
5
March
4°C
0°C
-1°C
33%
57%
4.5 m/s
1
0
13
April
9°C
5°C
5°C
34%
58%
4.4 m/s
11
0
36
May
16°C
11°C
13°C
34%
53%
3.9 m/s
41
7
64
June
22°C
17°C
22°C
31%
44%
3.6 m/s
67
29
55
July
25°C
20°C
26°C
30%
41%
3.4 m/s
65
50
32
August
25°C
19°C
25°C
31%
43%
3.2 m/s
72
45
37
September
22°C
16°C
20°C
32%
46%
3.5 m/s
70
23
62
October
14°C
9°C
11°C
34%
52%
4.0 m/s
30
3
60
November
7°C
3°C
1°C
29%
55%
4.2 m/s
7
0
23
December
1°C
-2°C
-5°C
28%
62%
4.3 m/s
0
0
5
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short South Milwaukee weather by season
Year round, South Milwaukee has days of about -3°C at their warmest in January, its coolest month, and 25°C in July, its warmest; the coolest hours of the day run from -6°C to 20°C through the year, and the average temperature over the year is 10°C around the clock. Rain is most likely around April and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
South Milwaukee weather in winterDecember to February
High -1°CLow -4°CRain 27%
Winter in South Milwaukee has typical daily highs of about -1°C and lows of about -4°C, with a 27% chance of rain on a given day.
South Milwaukee weather in springMarch to May
High 10°CLow 5°CRain 34%
Spring in South Milwaukee has typical daily highs of about 10°C and lows of about 5°C, with a 34% chance of rain on a given day.
South Milwaukee weather in summerJune to August
High 24°CLow 19°CRain 31%
Summer in South Milwaukee has typical daily highs of about 24°C and lows of about 19°C, with a 31% chance of rain on a given day.
South Milwaukee weather in autumnSeptember to November
High 14°CLow 9°CRain 32%
Autumn in South Milwaukee has typical daily highs of about 14°C and lows of about 9°C, with a 32% chance of rain on a given day.
When is the rainy season in South Milwaukee?
South Milwaukee has no sharply defined rainy season: the chance of rain on a given day runs from 25% in February, the driest month, to 34% in April, the wettest.
What time of year is South Milwaukee windiest?
Winds in South Milwaukee are highest in February, averaging 4.5 m/s (16 km/h), and lightest in August, at 3.2 m/s (12 km/h). The prevailing wind is from the SW.
What is the average temperature in South Milwaukee year round?
The average temperature in South Milwaukee over the whole year is 10°C. July is the hottest month, with highs of about 25°C; January is the coldest, with lows of about -6°C.