Towanda, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Towanda, a village in Mclean County, Illinois.
This Afternoon
78°F
Slight Chance Showers And Thunderstorms
Rain showers likely before 4pm, then a slight chance of showers and thunderstorms between 4pm and 5pm. Mostly cloudy, with a high near 78. East wind around 10 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Towanda
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Slight Chance Showers And Thunderstorms | 10 mph E | 62% |
| Tonight | 67°F | Partly Cloudy | 12 mph ESE | 9% |
| Saturday | 85°F | Chance Showers And Thunderstorms | 12 mph S | 29% |
| Saturday Night | 67°F | Chance Showers And Thunderstorms | 9 mph E | 51% |
| Sunday | 78°F | Rain Showers Likely | 5 to 15 mph NNE | 63% |
| Sunday Night | 57°F | Showers And Thunderstorms Likely | 13 to 16 mph NE | 66% |
| Monday | 67°F | Showers And Thunderstorms Likely | 17 mph ENE | 68% |
| Monday Night | 52°F | Chance Showers And Thunderstorms | 14 to 17 mph NE | 51% |
| Tuesday | 66°F | Chance Rain Showers | 16 mph NE | 26% |
| Tuesday Night | 50°F | Mostly Cloudy | 8 to 15 mph NNE | 7% |
| Wednesday | 69°F | Partly Sunny | 8 to 12 mph NNE | 4% |
| Wednesday Night | 51°F | Partly Cloudy | 5 to 12 mph NNE | 4% |
| Thursday | 70°F | Mostly Sunny | 6 to 9 mph NNE | 2% |
| Thursday Night | 53°F | Partly Cloudy | 5 to 8 mph NNE | 3% |
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
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Arrowsmith
Bellflower
Bloomington
Chenoa
Colfax
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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 Sep 18, 2026.