Sidney, IA Weather & Growing Conditions
Tonight
69°F
Mostly Cloudy then Chance Showers And Thunderstorms
A chance of showers and thunderstorms after midnight. Mostly cloudy. Low around 69, with temperatures rising to around 72 overnight. South southeast wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 69°F | Mostly Cloudy then Chance Showers And Thunderstorms | 6 to 10 mph SSE | 41% |
| Saturday | 82°F | Chance Showers And Thunderstorms | 7 mph NNW | 40% |
| Saturday Night | 63°F | Chance Showers And Thunderstorms | 8 mph N | 47% |
| Sunday | 68°F | Chance Rain Showers | 7 to 10 mph NNE | 49% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 8 mph NE | 49% |
| Monday | 62°F | Chance Rain Showers | 9 mph NE | 46% |
| Monday Night | 54°F | Chance Rain Showers then Mostly Cloudy | 5 to 8 mph NE | 46% |
| Tuesday | 61°F | Mostly Cloudy | 7 mph NE | 8% |
| Tuesday Night | 50°F | Partly Cloudy | 2 to 6 mph E | 3% |
| Wednesday | 65°F | Mostly Sunny | 5 mph ESE | 4% |
| Wednesday Night | 54°F | Mostly Cloudy | 2 mph ESE | 13% |
| Thursday | 66°F | Chance Rain Showers | 5 mph SE | 33% |
| Thursday Night | 57°F | Slight Chance Rain Showers | 3 mph SE | 21% |
| Friday | 67°F | Slight Chance Rain Showers | 2 to 6 mph ESE | 20% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Sidney, IA
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
182 days
Hardiness zone
5b
Explore more for Sidney, IA: full frost dates · planting calendar · Iowa frost dates
Climate data from the nearest NOAA station, Sidney 1Sse, Ia (2.7 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.