Shiloh, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Shiloh, a village in St. Clair County, Illinois.
Tonight
73°F
Partly Cloudy
Partly cloudy, with a low around 73. South wind around 6 mph.
7-day forecast for Shiloh
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 73°F | Partly Cloudy | 6 mph S | 9% |
| Saturday | 97°F | Mostly Sunny | 3 to 8 mph SW | 6% |
| Saturday Night | 73°F | Partly Cloudy | 5 mph S | 1% |
| Sunday | 94°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 3 to 7 mph W | 17% |
| Sunday Night | 68°F | Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms | 8 mph N | 54% |
| Monday | 81°F | Showers And Thunderstorms Likely | 6 to 12 mph N | 66% |
| Monday Night | 61°F | Showers And Thunderstorms Likely | 7 to 13 mph N | 66% |
| Tuesday | 72°F | Chance Rain Showers then Mostly Cloudy | 12 mph N | 28% |
| Tuesday Night | 55°F | Mostly Cloudy | 6 to 12 mph N | 6% |
| Wednesday | 74°F | Mostly Sunny | 9 mph N | 3% |
| Wednesday Night | 56°F | Partly Cloudy | 3 to 8 mph N | 2% |
| Thursday | 75°F | Mostly Sunny | 3 to 9 mph N | 2% |
| Thursday Night | 59°F | Partly Cloudy | 3 to 8 mph N | 2% |
| Friday | 76°F | Mostly Sunny | 3 to 8 mph N | 5% |
Forecast source: National Weather Service (api.weather.gov) for Shiloh (38.552, -89.915). Updated through the day.
Growing snapshot for Shiloh
Last spring frost
Apr 12
First fall frost
Oct 20
Growing season
189 days
Hardiness zone
7a
More local growing data for Shiloh: nearby ZIP 62221 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Belleville
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Marissa
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New Athens
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Climate data from the nearest NOAA station, Belleville Siu Rsch, Il (3.1 mi from Shiloh). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.