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Riverside, USA Weather Averages

August is the hottest month in Riverside with an average temperature of 23°C (73°F) and the coldest is January at -3°C (26°F). The wettest month is June with an average of 100mm of rain..

Average Temperature Riverside

What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month
What is Average Temperature?
The average high temperature and the average low temperature for that month, on a daily basis, divided by 2 equals the average temperature for that month

Average High Low Temperature Riverside

What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily
What is Average High Low Temperature?
The sum of high temperatures/low temperatures divided by the number of days in that month, recorded daily

Average Rainfall Riverside

What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years
What is Average Rainfall?
The amount of mm in rain for that month divided by the number of days, and the number of days that it rains during that month on average, over a given period of years

Riverside : Next 24-Hour Weather

Today - 14th April 2026

Sunrise 06:12

Sunrise

Sunset 19:31

Sunset
13:00
Thundery outbreaks possible
24°C (75°F)
14:00
Thundery outbreaks possible
26°C (77°F)
15:00
Clear
27°C (80°F)
16:00
Thundery outbreaks possible
27°C (80°F)
17:00
Thundery outbreaks possible
26°C (79°F)
18:00
Thundery outbreaks possible
26°C (77°F)
19:00
Thundery outbreaks possible
24°C (75°F)
20:00
Thundery outbreaks possible
24°C (74°F)
21:00
Thundery outbreaks possible
24°C (74°F)
22:00
Thundery outbreaks possible
24°C (74°F)
23:00
Thundery outbreaks possible
24°C (74°F)

Tomorrow - 15th April 2026

Sunrise 06:12

Sunrise

Sunset 19:31

Sunset
0:00
Thundery outbreaks possible
23°C (73°F)
1:00
Thundery outbreaks possible
23°C (73°F)
2:00
Thundery outbreaks possible
23°C (72°F)
3:00
Thundery outbreaks possible
22°C (71°F)
4:00
Thundery outbreaks possible
22°C (71°F)
5:00
Thundery outbreaks possible
22°C (70°F)
6:00
Thundery outbreaks possible
21°C (70°F)
7:00
Thundery outbreaks possible
22°C (70°F)
8:00
Thundery outbreaks possible
22°C (71°F)
9:00
Thundery outbreaks possible
23°C (72°F)
10:00
Overcast
23°C (73°F)
11:00
Overcast
24°C (74°F)
12:00
Overcast
24°C (75°F)