Riverside, CA 14-Day Forecast
California, United States 🇺🇸
80°
Sunny right now
Today: high 84°, low 67°
Updated 1 hour ago
Riverside weather for the next 14 days
Wednesday, September 16
Sunny High 82° Low 66°Precipitation
2%
· 0.0 in
Max wind
13 mph
Humidity
52%
UV index
9 - Very High
Sunrise / sunset
06:33 AM / 06:55 PM
Thursday, September 17
Sunny High 82° Low 64°Precipitation
2%
· 0.0 in
Max wind
11 mph
Humidity
50%
UV index
8 - Very High
Sunrise / sunset
06:34 AM / 06:53 PM
Friday, September 18
Sunny High 83° Low 66°Precipitation
1%
· 0.0 in
Max wind
11 mph
Humidity
43%
UV index
8 - Very High
Sunrise / sunset
06:35 AM / 06:52 PM
Saturday, September 19
Sunny High 86° Low 67°Precipitation
1%
· 0.0 in
Max wind
11 mph
Humidity
42%
UV index
9 - Very High
Sunrise / sunset
06:35 AM / 06:51 PM
Sunday, September 20
Sunny High 85° Low 69°Precipitation
3%
· 0.0 in
Max wind
13 mph
Humidity
46%
UV index
7 - High
Sunrise / sunset
06:36 AM / 06:49 PM
Monday, September 21
Sunny High 81° Low 67°Precipitation
2%
· 0.0 in
Max wind
11 mph
Humidity
53%
UV index
7 - High
Sunrise / sunset
06:37 AM / 06:48 PM
Tuesday, September 22
Sunny High 84° Low 65°Precipitation
2%
· 0.0 in
Max wind
10 mph
Humidity
54%
UV index
7 - High
Sunrise / sunset
06:37 AM / 06:46 PM
Wednesday, September 23
Sunny High 92° Low 71°Precipitation
2%
· 0.0 in
Max wind
12 mph
Humidity
40%
UV index
8 - Very High
Sunrise / sunset
06:38 AM / 06:45 PM
Thursday, September 24
Patchy rain nearby High 88° Low 73°Precipitation
57%
· 0.05 in
Max wind
12 mph
Humidity
47%
UV index
8 - Very High
Sunrise / sunset
06:39 AM / 06:44 PM
Friday, September 25
Sunny High 87° Low 71°Precipitation
2%
· 0.0 in
Max wind
10 mph
Humidity
53%
UV index
8 - Very High
Sunrise / sunset
06:39 AM / 06:42 PM
Saturday, September 26
Overcast High 86° Low 71°Precipitation
9%
· 0.0 in
Max wind
10 mph
Humidity
47%
UV index
6 - High
Sunrise / sunset
06:40 AM / 06:41 PM
Sunday, September 27
Overcast High 88° Low 73°Precipitation
5%
· 0.0 in
Max wind
8 mph
Humidity
37%
UV index
8 - Very High
Sunrise / sunset
06:41 AM / 06:39 PM
Monday, September 28
Sunny High 91° Low 75°Precipitation
0%
· 0.0 in
Max wind
10 mph
Humidity
27%
UV index
8 - Very High
Sunrise / sunset
06:41 AM / 06:38 PM
Riverside 14-day outlook: the story
The warmest day of Riverside's 14-day outlook is Wednesday, September 23 with a high near 92°F (33°C); the coolest night comes Thursday, September 17, dipping to 64°F (18°C). The trend points warmer: week two runs about 5°F above week one. Highs over the next two weeks average 83°F (28°C), about 9°F (5°C) below the typical September high of 92°F (33°C).
Precipitation is most likely on Thursday 24; the wettest day looks like Thursday, September 24 with about 0.05 in (1.3 mm) expected. For the weekend, expect Saturday 86°F (30°C) and sunny / Sunday 85°F (30°C) and sunny.
For typical conditions month by month, see the Riverside climate & average temperatures guide.
Riverside forecast questions
Will it rain in Riverside this week?
The forecast currently shows meaningful precipitation chances on 1 of the next 14 days, peaking around Thursday, September 24.
What will be the warmest day in Riverside over the next 14 days?
Wednesday, September 23, with a forecast high near 92°F (33°C).
How accurate is a 14-day forecast for Riverside?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Riverside by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 65° | 44° | 6 | 3.4 in | 8.3 h/day | 63% |
| February | 68° | 45° | 6 | 2.6 in | 9.0 h/day | 58% |
| March | 70° | 47° | 8 | 2.7 in | 10.2 h/day | 64% |
| April | 77° | 52° | 3 | 0.8 in | 11.3 h/day | 57% |
| May | 79° | 54° | 3 | 0.5 in | 12.0 h/day | 62% |
| June | 89° | 60° | 0 | 0.0 in | 13.3 h/day | 55% |
| July | 95° | 65° | 0 | 0.2 in | 13.7 h/day | 52% |
| August | 96° | 67° | 1 | 0.2 in | 12.7 h/day | 51% |
| September | 92° | 64° | 2 | 0.4 in | 11.3 h/day | 53% |
| October | 84° | 58° | 2 | 0.6 in | 10.3 h/day | 49% |
| November | 74° | 49° | 3 | 1.0 in | 9.4 h/day | 46% |
| December | 66° | 44° | 5 | 2.4 in | 8.2 h/day | 56% |
14-day forecasts nearby