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7 Days
14 Days
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Monthly
Precipitation
Temperature
Wind
Temperature Unit Selection
°Celsius
°Fahrenheit
Monthly Historical Averages
Corvallis, MT
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May
Average Temperature
High
19°
Feels 19
Low
5°
Feels 4
Average Precipitation
9 Days
Rain amount
28.4mm
Snow amount
1.4cm
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Daily Historical Averages
May 2026
S
M
T
W
T
F
S
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
22°
23
25°
24
26°
25
28°
26
18°
27
16°
28
18°
29
20°
30
21°
31
21°
Forecast
Friday, May 22, 2026
Day
22°
Feels 22
Wind
8 km/h NW
Gust
12 km/h
Humidity
25%
P.O.P
30%
Night
4°
Feels 3
Wind
8 km/h SE
Gust
12 km/h
Humidity
93%
P.O.P
30%
Historical Averages
May 22
High
Feels
Low
Feels
Precip Frequency
Total Daylight
Humidity
Historical Averages are based on data recorded from 2000 onwards.