Annapolis, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Annapolis, a community in Crawford County, Illinois.
Tonight
70°F
Slight Chance Showers And Thunderstorms then Mostly Cloudy
A slight chance of showers and thunderstorms before 8pm. Mostly cloudy, with a low around 70. East southeast wind 5 to 8 mph, with gusts as high as 16 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Annapolis
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Tonight | 70°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 8 mph ESE | 15% |
| Saturday | 93°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 9 mph SSW | 20% |
| Saturday Night | 71°F | Partly Cloudy | 8 mph S | 9% |
| Sunday | 92°F | Mostly Sunny then Slight Chance Showers And Thunderstorms | 5 to 9 mph W | 20% |
| Sunday Night | 64°F | Chance Showers And Thunderstorms | 12 mph NNE | 41% |
| Monday | 78°F | Showers And Thunderstorms Likely | 13 mph NE | 61% |
| Monday Night | 58°F | Showers And Thunderstorms Likely then Chance Showers And Thunderstorms | 10 to 14 mph NNE | 61% |
| Tuesday | 73°F | Chance Showers And Thunderstorms | 14 mph NNE | 41% |
| Tuesday Night | 55°F | Mostly Cloudy | 8 to 14 mph NNE | 9% |
| Wednesday | 73°F | Partly Sunny | 12 mph NNE | 5% |
| Wednesday Night | 55°F | Mostly Cloudy | 6 to 12 mph NNE | 5% |
| Thursday | 75°F | Mostly Sunny | 6 to 10 mph N | 3% |
| Thursday Night | 56°F | Partly Cloudy | 6 to 9 mph NNE | 3% |
| Friday | 75°F | Mostly Sunny | 7 to 10 mph NNE | 2% |
Forecast source: National Weather Service (api.weather.gov) for Annapolis (39.143, -87.817). Updated through the day.
Growing snapshot for Annapolis
Last spring frost
Apr 13
First fall frost
Oct 22
Growing season
190 days
Hardiness zone
6b
More local growing data for Annapolis: nearby ZIP 62413 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Robinson, Il (9.7 mi from Annapolis). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.