Palmyra, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Palmyra, a village in Macoupin County, Illinois.
Overnight
64°F
Clear
Clear, with a low around 64. Southeast wind around 2 mph.
7-day forecast for Palmyra
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 64°F | Clear | 2 mph SE | 0% |
| Tuesday | 86°F | Sunny | 5 mph S | 0% |
| Tuesday Night | 65°F | Mostly Clear | 5 mph S | 0% |
| Wednesday | 87°F | Mostly Sunny then Isolated Showers And Thunderstorms | 6 mph S | 17% |
| Wednesday Night | 67°F | Chance Showers And Thunderstorms | 5 mph S | 82% |
| Thursday | 83°F | Showers And Thunderstorms | 5 mph SW | 82% |
| Thursday Night | 65°F | Slight Chance Showers And Thunderstorms | 3 mph SE | 21% |
| Friday | 84°F | Partly Sunny | 3 mph SW | 11% |
| Friday Night | 66°F | Partly Cloudy then Chance Showers And Thunderstorms | 2 mph S | 25% |
| Saturday | 87°F | Chance Showers And Thunderstorms then Mostly Sunny | 5 mph S | 25% |
| Saturday Night | 70°F | Mostly Clear | 6 mph S | 8% |
| Sunday | 89°F | Sunny | 6 to 9 mph S | 5% |
| Sunday Night | 71°F | Mostly Clear | 8 mph S | 5% |
| Monday | 90°F | Mostly Sunny | 8 mph SW | 9% |
Forecast source: National Weather Service (api.weather.gov) for Palmyra (39.434, -89.996). Updated through the day.
Growing snapshot for Palmyra
Last spring frost
Apr 14
First fall frost
Oct 21
Growing season
188 days
Hardiness zone
6b
More local growing data for Palmyra: nearby ZIP 62674 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
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Hettick
Lake Ka-Ho
Modesto
Mount Clare
Mount Olive
Nilwood
Royal Lakes
Sawyerville
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Shipman
Standard City
Staunton
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White City
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Climate data from the nearest NOAA station, Carlinville, Il (13.4 mi from Palmyra). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.