Hamlet, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hamlet, a community in Mercer County, Illinois.
Overnight
69°F
Chance Showers And Thunderstorms
A chance of showers and thunderstorms between 2am and 4am, then patchy fog and a chance of showers and thunderstorms. Partly cloudy, with a low around 69. Southeast wind around 10 mph. Chance of precipitation is 30%.
7-day forecast for Hamlet
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 69°F | Chance Showers And Thunderstorms | 10 mph SE | 27% |
| Saturday | 83°F | Patchy Fog | 5 to 10 mph SE | 66% |
| Saturday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 5 to 10 mph W | 82% |
| Sunday | 71°F | Showers And Thunderstorms | 10 to 15 mph NE | 79% |
| Sunday Night | 59°F | Chance Showers And Thunderstorms | 15 mph NE | 52% |
| Monday | 64°F | Rain Showers Likely | 15 mph NE | 60% |
| Monday Night | 53°F | Chance Rain Showers | 10 to 15 mph NE | 50% |
| Tuesday | 63°F | Chance Rain Showers | 10 to 15 mph NE | 27% |
| Tuesday Night | 49°F | Partly Cloudy | 5 to 10 mph NE | 6% |
| Wednesday | 67°F | Mostly Sunny | 10 mph NE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 5 mph NE | 1% |
| Thursday | 68°F | Partly Sunny | 5 mph NE | 4% |
| Thursday Night | 55°F | Partly Cloudy | 5 mph NE | 3% |
| Friday | 72°F | Mostly Sunny | 5 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Hamlet (41.312, -90.733). Updated through the day.
Growing snapshot for Hamlet
Last spring frost
Apr 22
First fall frost
Oct 19
Growing season
181 days
Hardiness zone
5b
More local growing data for Hamlet: nearby ZIP 61279 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Aledo
Alexis
Cable
Eliza
Joy
Keithsburg
Matherville
Millersburg
New Boston
North Henderson
Preemption
Reynolds
Seaton
Sherrard
Viola
Windsor
Climate data from the nearest NOAA station, Aledo, Il (8.9 mi from Hamlet). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.