Latham, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Latham, a village in Logan County, Illinois.
Today
85°F
Sunny
Sunny, with a high near 85. South southwest wind around 6 mph.
7-day forecast for Latham
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Sunny | 6 mph SSW | 2% |
| Tonight | 66°F | Mostly Clear | 3 to 8 mph SSE | 1% |
| Wednesday | 85°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 10 mph SSW | 20% |
| Wednesday Night | 68°F | Showers And Thunderstorms Likely | 5 to 9 mph SSW | 70% |
| Thursday | 80°F | Showers And Thunderstorms Likely | 7 mph SSW | 70% |
| Thursday Night | 66°F | Chance Showers And Thunderstorms | 2 to 6 mph S | 39% |
| Friday | 83°F | Mostly Sunny | 5 mph SSW | 9% |
| Friday Night | 67°F | Chance Showers And Thunderstorms | 5 mph SSW | 25% |
| Saturday | 86°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 3 to 8 mph SSW | 16% |
| Saturday Night | 70°F | Mostly Clear | 8 mph S | 11% |
| Sunday | 88°F | Sunny | 9 to 14 mph SSW | 6% |
| Sunday Night | 72°F | Mostly Clear | 9 to 13 mph SSW | 12% |
| Monday | 89°F | Mostly Sunny | 9 to 13 mph SSW | 13% |
| Monday Night | 72°F | Slight Chance Showers And Thunderstorms | 12 mph SSW | 25% |
Forecast source: National Weather Service (api.weather.gov) for Latham (39.967, -89.162). Updated through the day.
Growing snapshot for Latham
Last spring frost
Apr 14
First fall frost
Oct 24
Growing season
192 days
Hardiness zone
6a
More local growing data for Latham: nearby ZIP 62543 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Atlanta
Beason
Broadwell
Chestnut
Cornland
Elkhart
Emden
Hartsburg
Lincoln
Middletown
Mount Pulaski
New Holland
Climate data from the nearest NOAA station, Decatur Wtp, Il (14.5 mi from Latham). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.