No

you don't need a jacket based on the weather in Riverside, CA, USA 1 second ago

67°F20°C & Clear

Wind is 2 mph4 km/h from the Southwest, gusting to 4 mph7 km/h
July 17
3am67°F20°C2 mph4 km/h SouthwestClear
4am66°F19°C3 mph5 km/h SouthwestClear
5am65°F18°C2 mph3 km/h SouthwestClear
6am64°F18°C2 mph4 km/h SouthClear
7am62°F17°C2 mph4 km/h SouthClear
8am62°F16°C1 mph2 km/h SouthClear
9am61°F16°C2 mph3 km/h SoutheastClear
10am64°F18°C1 mph2 km/h SouthMostly Clear
11am67°F20°C1 mph2 km/h SouthwestMostly Clear
12pm71°F22°C2 mph3 km/h WestMostly Clear
1pm76°F25°C3 mph5 km/h WestMostly Clear
2pm81°F27°C5 mph8 km/h WestMostly Clear
DateLowHighWindDayNight
July 1661°F16°C89°F32°C5 mph8 km/h from WestClearClear
July 1761°F16°C89°F32°C7 mph11 km/h from WestMostly ClearMostly Clear
July 1865°F18°C89°F31°C7 mph11 km/h from WestMostly ClearClear
July 1964°F18°C89°F32°C7 mph11 km/h from WestClearClear
July 2063°F17°C88°F31°C6 mph10 km/h from WestClearMostly Clear
July 2162°F17°C87°F31°C6 mph10 km/h from WestClearClear
July 2261°F16°C87°F31°C6 mph10 km/h from WestClearMostly Clear

No

Low of 61°F16°C, High of 89°F32°C
Wind: 7 mph11 km/h
Precipitation: None

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