Alexander, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Alexander, a community in Morgan County, Illinois.
This Afternoon
70°F
Light Rain
Rain and a slight chance of thunderstorms. Cloudy. High near 70, with temperatures falling to around 64 in the afternoon. South southeast wind around 22 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
7-day forecast for Alexander
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 70°F | Light Rain | 22 mph SSE | 90% |
| Tonight | 52°F | Light Rain | 13 to 20 mph SSW | 80% |
| Wednesday | 59°F | Chance Rain Showers then Mostly Cloudy | 13 to 16 mph WSW | 10% |
| Wednesday Night | 42°F | Mostly Cloudy | 10 mph WSW | 1% |
| Thursday | 61°F | Mostly Sunny | 9 to 13 mph WSW | 5% |
| Thursday Night | 41°F | Mostly Cloudy then Slight Chance Light Rain | 7 mph NW | 22% |
| Friday | 56°F | Mostly Cloudy | 7 to 10 mph NNW | 12% |
| Friday Night | 35°F | Mostly Cloudy | 1 to 8 mph NNW | 2% |
| Saturday | 54°F | Mostly Sunny | 3 mph NW | 1% |
| Saturday Night | 34°F | Partly Cloudy | 2 mph W | 1% |
| Sunday | 60°F | Sunny | 2 to 8 mph W | 7% |
| Sunday Night | 34°F | Mostly Clear | 6 mph W | 4% |
| Monday | 64°F | Sunny | 3 to 10 mph SW | 2% |
| Monday Night | 39°F | Mostly Clear | 6 mph WSW | 1% |
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 Nov 4, 2026.