Today's Weather Forecast - Riverside

Today's weather in Riverside. high 36°C (97°F), low 24°C (75°F). Sunny.

Today’s Hourly Weather Outlook

Morning6 AM – Noon28°
Wind speed
8 km/h
Rain probability
0%
AfternoonNoon – 6 PM35°
Wind speed
21 km/h
Rain probability
0%
Evening6 PM – Midn27°
Wind speed
17 km/h
Rain probability
0%
NightMidn – 6 AM26°
Wind speed
5 km/h
Rain probability
1%

24-Hour Rain & Temperature Forecast

Sunrise & Sunset

Sunrise
Dawn 6:00 AM
Total Daylight
15% of day elapsedSolar noon 12:45 PM
Sunset
Dusk 7:31 PM
Remaining10h 35m
Solar elevation23°
vs yesterday-3 min

Air Quality Index & Health Advice

Air Quality Index

Air quality level
Moderate
Dominant pollutant
Dominant: PM2.5
Monitoring station
Rubidoux - Mission Blvd, Riverside
PM2.5
53μg/m³
PM10
33μg/m³
O₃
8ppb
NO₂
17.5ppb
SO₂
0.2ppb
CO
4.5ppm
0Good → Hazardous300+

5-Day Weather Forecast

Full 15-Day Forecast

Weather Insight

Riverside is forecast to reach a high of 36°C today, with an overnight low around 24°C. That's 3° above the long-term average high of 33°C for this time of year. It continues a recent pattern — 15 of the last 28 days with published data have run warmer than normal. Expect little chance of rain (1% probability) and moderate breezes averaging 21 km/h. Air quality is currently Moderate (AQI 61), driven mainly by PM2.5 at 15 μg/m³.

Today vs Normal

36°C+3° above normal

The long-term average high for today is 33°C.

15 of the last 28 days with published data ran above normal.

It continues that pattern - today's forecast is also running above normal.

2026-08-28: 39°C39°2026-08-29: 37°C37°2026-08-30: 35°C35°2026-08-31: 32°C32°2026-09-01: 31°C31°2026-09-02: 30°C30°2026-09-03: 29°C29°2026-09-04: 30°C30°2026-09-05: 32°C32°2026-09-06: 23°C23°2026-09-07: 31°C31°2026-09-08: 34°C34°

Red = above normal, blue = at or below · last 12 days

Air Quality

Air Quality
Moderate

Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.