Tamms, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Tamms, a village in Alexander County, Illinois.
This Afternoon
78°F
Slight Chance Showers And Thunderstorms
A slight chance of showers and thunderstorms between 4pm and 5pm, then a chance of showers and thunderstorms. Partly sunny. High near 78, with temperatures falling to around 74 in the afternoon. South wind 15 to 18 mph, with gusts as high as 29 mph. Chance of precipitation is 30%.
7-day forecast for Tamms
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| This Afternoon | 78°F | Slight Chance Showers And Thunderstorms | 15 to 18 mph S | 31% |
| Tonight | 56°F | Showers And Thunderstorms | 6 to 13 mph S | 100% |
| Wednesday | 68°F | Partly Sunny | 3 to 9 mph SW | 7% |
| Wednesday Night | 44°F | Mostly Clear | 2 mph WSW | 0% |
| Thursday | 69°F | Sunny | 1 to 6 mph SW | 0% |
| Thursday Night | 46°F | Partly Cloudy | 2 mph WNW | 4% |
| Friday | 62°F | Partly Sunny | 2 to 8 mph NNW | 1% |
| Friday Night | 40°F | Partly Cloudy | 5 mph NNW | 1% |
| Saturday | 58°F | Mostly Sunny | 5 mph N | 0% |
| Saturday Night | 36°F | Partly Cloudy | 1 mph NNW | 1% |
| Sunday | 62°F | Sunny | 0 to 5 mph NW | 5% |
| Sunday Night | 36°F | Mostly Clear | 2 mph NW | 5% |
| Monday | 65°F | Sunny | 1 to 6 mph W | 1% |
| Monday Night | 38°F | Mostly Clear | 2 mph WNW | 0% |
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 Nov 3, 2026.