Weather Tomorrow in Riverside, CA
Extreme Heat WarningUntil Sep 9, 5:30 AM
Extreme Heat Warning issued September 8 at 1:52PM PDT until September 9 at 8:00PM PDT by NWS San Diego CA
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Heat AdvisoryUntil Sep 9, 5:30 AM
Heat Advisory issued September 8 at 1:52PM PDT until September 10 at 8:00PM PDT by NWS San Diego CA
Drink plenty of fluids, stay in an air-conditioned room, stay out of the sun, and check up on relatives and neighbors. Do not leave young children and pets in unattended vehicles. Car interiors will reach lethal temperatures in a matter of minutes.
Wednesday, September 9, 2026
Precip chance
8%
Wind
0-10 mph
Humidity
58%
Feels like
98–78°F
Data source: National Weather Service (NOAA) · Updated 44 min ago
Tomorrow by Hour
| Time | Temp | Condition | Rain % | Wind | ||
|---|---|---|---|---|---|---|
| 7 AM☽ | 82°F | Partly Cloudy | 2% | 5 mph S | ||
| 8 AM☽ | 80°F | Partly Cloudy | 2% | 5 mph SE | ||
| 9 AM☽ | 79°F | Mostly Clear | 2% | 5 mph E | ||
| 10 AM☽ | 78°F | Mostly Clear | 2% | 5 mph E | ||
| 11 AM☽ | 78°F | Mostly Clear | 2% | 5 mph E | ||
| 12 PM☽ | 76°F | Mostly Clear | 1% | 5 mph E | ||
| 1 PM | 77°F | Sunny | 1% | 5 mph E | ||
| 2 PM | 76°F | Sunny | 1% | 5 mph E | ||
| 3 PM | 78°F | Sunny | 1% | 0 mph | ||
| 4 PM | 82°F | Sunny | 1% | 0 mph | ||
| 5 PM | 87°F | Sunny | 1% | 0 mph | ||
| 6 PM | 91°F | Sunny | 6% | 0 mph | ||
| 7 PM | 96°F | Sunny | 6% | 0 mph | ||
| 8 PM | 98°F | Sunny | 6% | 5 mph W | ||
| 9 PM | 99°F | Sunny | 6% | 5 mph W | ||
| 10 PM | 100°F | Sunny | 6% | 5 mph W | ||
| 11 PM | 99°F | Sunny | 6% | 10 mph W | ||
| 12 AM | 98°F | Sunny | 8% | 10 mph W | ||
| 1 AM☽ | 96°F | Mostly Clear | 8% | 10 mph W | ||
| 2 AM☽ | 92°F | Mostly Clear | 8% | 5 mph W | ||
| 3 AM☽ | 88°F | Mostly Clear | 8% | 5 mph SW | ||
| 4 AM☽ | 86°F | Mostly Clear | 8% | 0 mph | ||
| 5 AM☽ | 85°F | Mostly Clear | 8% | 0 mph | ||
| 6 AM☽ | 84°F | Partly Cloudy | 0% | 0 mph | ||
Precipitation Timeline
What to Wear Tomorrow
Extreme heat — stay cool and protected
Clothing
- • Lightest possible clothing
- • Wide-brim hat
- • UV-protective shirt if outdoors
Footwear
Breathable sandals
Accessories
- • Sunglasses
- • Sunscreen
Conditions
High: 100°F
Low: 76°F
Wind: 0-10 mph
Rain: 8%
Enjoy your day!
Best Time to Be Outside Tomorrow
Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)
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