London Mills, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for London Mills, a village in Fulton County, Illinois.
This Afternoon
84°F
Mostly Cloudy
Mostly cloudy, with a high near 84. South wind around 8 mph, with gusts as high as 16 mph.
7-day forecast for London Mills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 84°F | Mostly Cloudy | 8 mph S | 9% |
| Tonight | 67°F | Chance Showers And Thunderstorms | 3 to 8 mph SSE | 57% |
| Sunday | 75°F | Showers And Thunderstorms Likely | 3 to 13 mph NNE | 64% |
| Sunday Night | 58°F | Chance Showers And Thunderstorms then Showers And Thunderstorms Likely | 10 to 14 mph NE | 57% |
| Monday | 65°F | Showers And Thunderstorms | 13 mph ENE | 75% |
| Monday Night | 54°F | Rain Showers Likely | 7 to 10 mph NE | 65% |
| Tuesday | 64°F | Chance Rain Showers | 10 mph NE | 52% |
| Tuesday Night | 50°F | Mostly Cloudy | 3 to 9 mph NNE | 9% |
| Wednesday | 66°F | Partly Sunny | 7 mph NNE | 3% |
| Wednesday Night | 52°F | Partly Cloudy | 1 to 5 mph NNE | 1% |
| Thursday | 70°F | Partly Sunny | 3 mph NNE | 2% |
| Thursday Night | 55°F | Mostly Cloudy | 2 mph NNE | 5% |
| Friday | 73°F | Partly Sunny | 0 to 5 mph NE | 7% |
| Friday Night | 55°F | Partly Cloudy | 2 mph NE | 4% |
Forecast source: National Weather Service (api.weather.gov) for London Mills (40.711, -90.266). Updated through the day.
Growing snapshot for London Mills
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
5b
More local growing data for London Mills: nearby ZIP 61544 weather · frost dates · planting calendar · Illinois frost dates
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Climate data from the nearest NOAA station, Avon, Il (11.3 mi from London Mills). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.