Sidney, IA Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sidney, a city in Fremont County, Iowa.
Today
52°F
Mostly Cloudy
Mostly cloudy. High near 52, with temperatures falling to around 50 in the afternoon. West wind 9 to 14 mph, with gusts as high as 22 mph.
7-day forecast for Sidney
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 52°F | Mostly Cloudy | 9 to 14 mph W | 7% |
| Tonight | 41°F | Mostly Cloudy | 9 mph WNW | 17% |
| Thursday | 52°F | Slight Chance Rain Showers then Mostly Cloudy | 9 to 13 mph NNW | 21% |
| Thursday Night | 39°F | Mostly Cloudy | 5 to 8 mph NNW | 2% |
| Friday | 52°F | Partly Sunny | 1 to 6 mph N | 1% |
| Friday Night | 33°F | Partly Cloudy | 1 mph E | 0% |
| Saturday | 55°F | Mostly Sunny | 3 mph SSW | 1% |
| Saturday Night | 36°F | Mostly Clear | 2 mph WSW | 0% |
| Sunday | 61°F | Sunny | 5 mph WSW | 0% |
| Sunday Night | 39°F | Clear | 5 mph SSW | 0% |
| Monday | 67°F | Sunny | 5 to 8 mph SW | 0% |
| Monday Night | 42°F | Mostly Clear | 5 mph WNW | 0% |
| Tuesday | 66°F | Sunny | 5 mph N | 0% |
| Tuesday Night | 45°F | Partly Cloudy | 2 mph ESE | 1% |
Forecast source: National Weather Service (api.weather.gov) for Sidney (40.746, -95.645). Updated through the day.
Growing snapshot for Sidney
Last spring frost
Apr 19
First fall frost
Oct 19
Growing season
182 days
Hardiness zone
5b
More local growing data for Sidney: nearby ZIP 51652 weather · frost dates · planting calendar · Iowa frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Sidney 1Sse, Ia (2.7 mi from Sidney). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.