London Mills, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for London Mills, a village in Fulton County, Illinois.
Overnight
54°F
Slight Chance Light Rain
A slight chance of rain. Cloudy, with a low around 54. Southwest wind around 12 mph, with gusts as high as 23 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for London Mills
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 54°F | Slight Chance Light Rain | 12 mph SW | 15% |
| Wednesday | 57°F | Slight Chance Light Rain then Slight Chance Drizzle | 12 to 15 mph WSW | 16% |
| Wednesday Night | 43°F | Slight Chance Drizzle then Cloudy | 13 mph WSW | 10% |
| Thursday | 56°F | Slight Chance Light Rain | 10 to 14 mph W | 22% |
| Thursday Night | 41°F | Slight Chance Light Rain then Mostly Cloudy | 5 to 8 mph NW | 21% |
| Friday | 52°F | Partly Sunny | 6 to 9 mph N | 9% |
| Friday Night | 31°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 52°F | Sunny | 0 to 3 mph NW | 0% |
| Saturday Night | 32°F | Mostly Clear | 1 mph WNW | 1% |
| Sunday | 58°F | Sunny | 1 to 7 mph WNW | 1% |
| Sunday Night | 33°F | Clear | 2 mph WNW | 1% |
| Monday | 64°F | Sunny | 0 to 7 mph W | 0% |
| Monday Night | 39°F | Mostly Clear | 3 mph WSW | 0% |
| Tuesday | 65°F | Sunny | 3 mph NW | 0% |
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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Vermont
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 Nov 4, 2026.