Hamlet, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Hamlet, a community in Mercer County, Illinois.
Overnight
63°F
Mostly Clear
Mostly clear, with a low around 63. South wind around 5 mph.
7-day forecast for Hamlet
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Clear | 5 mph S | 0% |
| Tuesday | 86°F | Mostly Sunny | 5 to 10 mph S | 8% |
| Tuesday Night | 68°F | Showers And Thunderstorms Likely | 5 mph NE | 65% |
| Wednesday | 79°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 5 mph NE | 77% |
| Wednesday Night | 63°F | Showers And Thunderstorms | 5 mph N | 79% |
| Thursday | 80°F | Chance Rain Showers then Mostly Sunny | 5 mph NE | 52% |
| Thursday Night | 63°F | Mostly Clear | 0 to 5 mph E | 8% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph SE | 6% |
| Friday Night | 66°F | Mostly Clear | 5 mph S | 12% |
| Saturday | 85°F | Sunny | 5 to 10 mph S | 9% |
| Saturday Night | 71°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 5 to 10 mph S | 15% |
| Sunday | 87°F | Slight Chance Showers And Thunderstorms then Sunny | 10 to 15 mph SW | 15% |
| Sunday Night | 70°F | Slight Chance Showers And Thunderstorms | 10 mph S | 31% |
| Monday | 86°F | Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms | 10 mph S | 31% |
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
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Aledo
Alexis
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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 Aug 4, 2026.