Annual mean 14°C · wettest around April · prevailing wind SW
Warmest
29.8 °C
Coldest
1.0 °C
Wettest
44%
Windiest
5.1 m/s
Prevailing
SW
4.0 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 Mascoutah over the whole year is 14°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about -2°C. Mascoutah has no sharply defined rainy season: the chance of rain on a given day runs from 35% in February, the driest month, to 44% in April, the wettest. Winds in Mascoutah are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.0 m/s (7 km/h). The prevailing wind is from the SW. The clearest skies in Mascoutah come in September, when the sky is typically 28% covered; January is the cloudiest month, at 55%.
Month by month Mascoutah 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
2°C
-2°C
-3°C
35%
55%
3.6 m/s
1
0
10
February
6°C
-0°C
1°C
35%
47%
3.6 m/s
7
0
25
March
12°C
5°C
7°C
42%
49%
3.9 m/s
15
0
43
April
17°C
9°C
13°C
44%
44%
3.7 m/s
40
6
60
May
23°C
15°C
21°C
43%
43%
3.0 m/s
59
30
48
June
29°C
21°C
29°C
37%
30%
2.5 m/s
37
54
14
July
30°C
22°C
32°C
39%
32%
2.1 m/s
15
49
3
August
29°C
20°C
30°C
39%
32%
2.0 m/s
29
54
8
September
27°C
16°C
27°C
35%
28%
2.0 m/s
50
53
26
October
19°C
10°C
16°C
37%
36%
2.7 m/s
50
15
60
November
11°C
4°C
7°C
40%
39%
3.0 m/s
18
1
46
December
6°C
1°C
1°C
38%
47%
3.2 m/s
3
0
23
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 Mascoutah weather by season
Year round, Mascoutah has days of about 2°C at their warmest in January, its coolest month, and 30°C in July, its warmest; the coolest hours of the day run from -2°C to 22°C through the year, and the average temperature over the year is 14°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.
Mascoutah weather in winterDecember to February
High 5°CLow -0°CRain 36%
Winter in Mascoutah has typical daily highs of about 5°C and lows of about -0°C, with a 36% chance of rain on a given day.
Mascoutah weather in springMarch to May
High 17°CLow 10°CRain 43%
Spring in Mascoutah has typical daily highs of about 17°C and lows of about 10°C, with a 43% chance of rain on a given day.
Mascoutah weather in summerJune to August
High 29°CLow 21°CRain 38%
Summer in Mascoutah has typical daily highs of about 29°C and lows of about 21°C, with a 38% chance of rain on a given day.
Mascoutah weather in autumnSeptember to November
High 19°CLow 10°CRain 38%
Autumn in Mascoutah has typical daily highs of about 19°C and lows of about 10°C, with a 38% chance of rain on a given day.
When is the rainy season in Mascoutah?
Mascoutah has no sharply defined rainy season: the chance of rain on a given day runs from 35% in February, the driest month, to 44% in April, the wettest.
What time of year is Mascoutah windiest?
Winds in Mascoutah are highest in March, averaging 3.9 m/s (14 km/h), and lightest in August, at 2.0 m/s (7 km/h). The prevailing wind is from the SW.
What is the average temperature in Mascoutah year round?
The average temperature in Mascoutah over the whole year is 14°C. July is the hottest month, with highs of about 30°C; January is the coldest, with lows of about -2°C.