Tamms, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tamms, a village in Alexander County, Illinois.
This Afternoon
101°F
Sunny
Sunny. High near 101, with temperatures falling to around 97 in the afternoon. Heat index values as high as 106. South wind around 2 mph.
7-day forecast for Tamms
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 101°F | Sunny | 2 mph S | 12% |
| Tonight | 72°F | Mostly Clear | 2 mph SE | 12% |
| Saturday | 98°F | Sunny | 0 to 6 mph SW | 2% |
| Saturday Night | 72°F | Partly Cloudy | 3 mph SSW | 0% |
| Sunday | 98°F | Sunny | 1 to 6 mph WSW | 2% |
| Sunday Night | 71°F | Partly Cloudy | 3 mph NNW | 5% |
| Monday | 91°F | Partly Sunny then Chance Showers And Thunderstorms | 1 to 7 mph N | 43% |
| Monday Night | 65°F | Chance Showers And Thunderstorms | 3 to 8 mph N | 43% |
| Tuesday | 80°F | Slight Chance Showers And Thunderstorms then Partly Sunny | 6 to 12 mph N | 19% |
| Tuesday Night | 60°F | Partly Cloudy | 3 to 12 mph N | 9% |
| Wednesday | 78°F | Mostly Sunny | 7 mph N | 3% |
| Wednesday Night | 58°F | Partly Cloudy | 2 to 6 mph NNE | 2% |
| Thursday | 79°F | Mostly Sunny | 2 to 7 mph NNE | 3% |
| Thursday Night | 59°F | Partly Cloudy | 2 to 6 mph NNE | 3% |
Forecast source: National Weather Service (api.weather.gov) for Tamms (37.242, -89.271). Updated through the day.
Growing snapshot for Tamms
Last spring frost
Apr 3
First fall frost
Nov 5
Growing season
216 days
Hardiness zone
7a
More local growing data for Tamms: nearby ZIP 62988 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Grand Chain Dam 53, Il (14 mi from Tamms). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.