Riverside, IA Weather & Growing Conditions
Tonight
64°F
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
A chance of rain showers before 10pm, then a chance of showers and thunderstorms between 10pm and 11pm, then showers and thunderstorms likely between 11pm and 1am, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy. Low around 64, with temperatures rising to around 68 overnight. North wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between 1 and 2 inches possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 64°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 5 mph N | 88% |
| Sunday | 68°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 64% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 10 to 15 mph NE | 59% |
| Monday | 62°F | Rain Showers | 15 mph NE | 75% |
| Monday Night | 53°F | Rain Showers Likely | 10 to 15 mph NE | 64% |
| Tuesday | 61°F | Chance Rain Showers | 10 mph NE | 45% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 5% |
| Wednesday | 64°F | Mostly Sunny | 5 to 10 mph NE | 2% |
| Wednesday Night | 52°F | Partly Cloudy | 0 to 5 mph NE | 1% |
| Thursday | 67°F | Partly Sunny | 0 to 5 mph E | 9% |
| Thursday Night | 56°F | Slight Chance Rain Showers | 0 to 5 mph E | 18% |
| Friday | 71°F | Slight Chance Rain Showers | 0 to 5 mph E | 18% |
| Friday Night | 57°F | Partly Cloudy | 0 to 5 mph E | 11% |
| Saturday | 71°F | Partly Sunny | 0 to 5 mph E | 11% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Riverside, IA
Last spring frost
Apr 29
First fall frost
Oct 9
Growing season
162 days
Hardiness zone
5b
Explore more for Riverside, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Iowa City, Ia (10 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 20, 2026.