Alexander, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alexander, a community in Morgan County, Illinois.
Today
92°F
Mostly Cloudy
Mostly cloudy, with a high near 92. Southwest wind around 7 mph.
7-day forecast for Alexander
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 92°F | Mostly Cloudy | 7 mph SW | 13% |
| Tonight | 69°F | Mostly Cloudy then Slight Chance Showers And Thunderstorms | 6 mph SSW | 24% |
| Sunday | 83°F | Chance Showers And Thunderstorms | 2 to 9 mph N | 47% |
| Sunday Night | 61°F | Chance Showers And Thunderstorms | 9 to 13 mph NE | 71% |
| Monday | 70°F | Showers And Thunderstorms Likely | 13 mph NE | 71% |
| Monday Night | 55°F | Chance Rain Showers | 9 to 14 mph NE | 36% |
| Tuesday | 67°F | Slight Chance Rain Showers | 13 mph NE | 24% |
| Tuesday Night | 51°F | Mostly Cloudy | 6 to 13 mph NNE | 9% |
| Wednesday | 70°F | Mostly Sunny | 7 to 10 mph NNE | 1% |
| Wednesday Night | 52°F | Partly Cloudy | 3 to 8 mph NNE | 1% |
| Thursday | 72°F | Mostly Sunny | 7 mph NNE | 3% |
| Thursday Night | 55°F | Partly Cloudy | 6 mph NNE | 3% |
| Friday | 75°F | Mostly Sunny | 3 to 8 mph NE | 4% |
| Friday Night | 55°F | Partly Cloudy | 3 to 7 mph NE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Alexander (39.722, -90.037). Updated through the day.
Growing snapshot for Alexander
Last spring frost
Apr 19
First fall frost
Oct 17
Growing season
179 days
Hardiness zone
6a
More local growing data for Alexander: nearby ZIP 62601 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Chapin
Concord
Franklin
Jacksonville
Lynnville
Meredosia
Merritt
Murrayville
Riggston
South Jacksonville
Waverly
Woodson
Climate data from the nearest NOAA station, Jacksonville 2E, Il (8.5 mi from Alexander). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.