Monthly Historical AveragesMattawa, ON
Average Temperature
High
1°
Feels -2
Low
-10°
Feels -15
Average Precipitation
10 Days
13.2mm
52.4cm
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Daily Historical Averages
S
M
T
W
T
F
S
ForecastWednesday, March 18, 2026
Day
-4°Feels -9
Wind
15 km/h SW
Gust
23 km/h
Humidity
45%
P.O.P
30%
Night
-6°Feels -12
Wind
17 km/h S
Gust
26 km/h
Humidity
93%
P.O.P
60%
Snow
~1 cm
Historical AveragesMar 18
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity