Towanda, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Towanda, a village in Mclean County, Illinois.
Tonight
54°F
Showers And Thunderstorms
Showers and thunderstorms. Mostly cloudy. Low around 54, with temperatures rising to around 59 overnight. South wind 15 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Towanda
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 54°F | Showers And Thunderstorms | 15 to 18 mph S | 96% |
| Wednesday | 61°F | Slight Chance Light Rain then Mostly Cloudy | 17 mph SW | 26% |
| Wednesday Night | 45°F | Mostly Cloudy | 13 mph SW | 5% |
| Thursday | 60°F | Partly Sunny | 12 to 16 mph WSW | 7% |
| Thursday Night | 41°F | Mostly Cloudy then Chance Light Rain | 6 to 9 mph NW | 27% |
| Friday | 55°F | Slight Chance Light Rain then Partly Sunny | 8 to 13 mph NNW | 18% |
| Friday Night | 34°F | Mostly Cloudy | 3 to 10 mph NNW | 6% |
| Saturday | 53°F | Mostly Sunny | 6 mph WNW | 3% |
| Saturday Night | 33°F | Partly Cloudy | 5 mph W | 3% |
| Sunday | 59°F | Sunny | 5 to 10 mph W | 13% |
| Sunday Night | 34°F | Mostly Clear | 5 to 8 mph WNW | 7% |
| Monday | 64°F | Sunny | 5 to 13 mph SW | 3% |
| Monday Night | 38°F | Mostly Clear | 6 to 9 mph WSW | 2% |
| Tuesday | 66°F | Sunny | 8 mph WNW | 1% |
Forecast source: National Weather Service (api.weather.gov) for Towanda (40.563, -88.901). Updated through the day.
Growing snapshot for Towanda
Last spring frost
Apr 25
First fall frost
Oct 16
Growing season
172 days
Hardiness zone
6a
More local growing data for Towanda: nearby ZIP 61776 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Anchor
Arrowsmith
Bellflower
Bloomington
Chenoa
Colfax
Cooksville
Danvers
Downs
Ellsworth
Gridley
Heyworth
Hudson
Kappa
Le Roy
Lexington
McLean
Normal
Saybrook
Shirley
Stanford
Twin Grove
Climate data from the nearest NOAA station, Normal 4Ne, Il (4.5 mi from Towanda). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.