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Riverside Weather Forecast
| THIS AFTERNOON | TONIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT |
 |  |  | |  | | | |  |  | |  |
| Mostly Cloudy | Chance of T-Storm | Showers Likely | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Showers | Chance of Showers | Mostly Cloudy | Mostly Cloudy |
| Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 79°FHi: 26°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 69°FHi: 21°C | Lo: 59°FLo: 15°C | Hi: 61°FHi: 16°C | Lo: 55°FLo: 13°C | Hi: 61°FHi: 16°C Lo: 51°FLo: 11°C | Hi: 61°FHi: 16°C Lo: 51°FLo: 11°C |
| POP: 20% | POP: 60% | POP: 50% | POP: 60% | POP: 80% | POP: 80% | POP: 70% | POP: 70% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 221 PM CDT Thu Sep 17 2026 
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Issued: 211 PM CDT Thu Sep 17 2026
Key Messages
- The wet weather pattern will continue through the weekend with rounds of rain which may be heavy at times. There will be periods of dry weather between each round.
- The repeated rounds of rain will result in general rises on the Mississippi River with the potential for river flooding on tributary rivers.
Aviation
/18Z TAFS THROUGH 18Z FRIDAY/... Issued at 1250 PM CDT Thu Sep 17 2026
A warm and humid air mass will remain over the area into Friday, and with light winds resulting in little ...