Sidney, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Sidney, a village in Champaign County, Illinois.
This Afternoon
82°F
Showers And Thunderstorms Likely
Showers and thunderstorms likely before 5pm. Mostly sunny, with a high near 82. East northeast wind around 9 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Sidney
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 82°F | Showers And Thunderstorms Likely | 9 mph ENE | 59% |
| Tonight | 68°F | Partly Cloudy | 8 mph ESE | 10% |
| Saturday | 89°F | Chance Showers And Thunderstorms | 9 mph S | 35% |
| Saturday Night | 69°F | Slight Chance Showers And Thunderstorms | 7 mph S | 26% |
| Sunday | 84°F | Chance Showers And Thunderstorms | 3 to 9 mph N | 52% |
| Sunday Night | 60°F | Showers And Thunderstorms Likely | 9 to 13 mph NE | 62% |
| Monday | 70°F | Showers And Thunderstorms Likely | 12 to 15 mph NE | 68% |
| Monday Night | 54°F | Chance Showers And Thunderstorms | 10 to 16 mph NE | 51% |
| Tuesday | 68°F | Chance Showers And Thunderstorms | 13 mph NE | 33% |
| Tuesday Night | 53°F | Mostly Cloudy | 6 to 13 mph NNE | 13% |
| Wednesday | 69°F | Partly Sunny | 7 to 10 mph NNE | 3% |
| Wednesday Night | 53°F | Partly Cloudy | 5 to 9 mph NNE | 3% |
| Thursday | 72°F | Mostly Sunny | 5 to 8 mph N | 4% |
| Thursday Night | 54°F | Partly Cloudy | 3 to 7 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Sidney (40.025, -88.072). Updated through the day.
Growing snapshot for Sidney
Last spring frost
Apr 20
First fall frost
Oct 21
Growing season
182 days
Hardiness zone
6a
More local growing data for Sidney: nearby ZIP 61877 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Bondville
Broadlands
Champaign
Dewey
Fisher
Foosland
Gifford
Homer
Ivesdale
Lake of the Woods
Longview
Ludlow
Mahomet
Ogden
Penfield
Pesotum
Philo
Rantoul
Royal
Sadorus
Savoy
Seymour
St. Joseph
Thomasboro
Tolono
Urbana
Climate data from the nearest NOAA station, Ogden, Il (10.3 mi from Sidney). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 18, 2026.