Bath, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bath, a village in Mason County, Illinois.
Overnight
55°F
Mostly Cloudy
Mostly cloudy, with a low around 55. Southwest wind around 10 mph, with gusts as high as 21 mph. New rainfall amounts less than a tenth of an inch possible.
7-day forecast for Bath
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 55°F | Mostly Cloudy | 10 mph SW | 12% |
| Wednesday | 59°F | Patchy Drizzle | 10 to 14 mph WSW | 10% |
| Wednesday Night | 46°F | Patchy Drizzle then Mostly Cloudy | 10 mph WSW | 10% |
| Thursday | 59°F | Mostly Cloudy then Slight Chance Light Rain | 12 mph W | 15% |
| Thursday Night | 42°F | Mostly Cloudy then Slight Chance Light Rain | 3 to 7 mph NW | 15% |
| Friday | 53°F | Partly Sunny | 8 mph N | 7% |
| Friday Night | 32°F | Partly Cloudy | 0 to 5 mph N | 0% |
| Saturday | 53°F | Sunny | 0 to 3 mph NNW | 0% |
| Saturday Night | 32°F | Mostly Clear | 1 mph WNW | 1% |
| Sunday | 59°F | Sunny | 1 to 5 mph W | 1% |
| Sunday Night | 34°F | Clear | 2 mph WSW | 1% |
| Monday | 64°F | Sunny | 1 to 6 mph SW | 0% |
| Monday Night | 39°F | Clear | 3 mph SW | 0% |
| Tuesday | 66°F | Sunny | 2 mph WNW | 0% |
Forecast source: National Weather Service (api.weather.gov) for Bath (40.190, -90.142). Updated through the day.
Growing snapshot for Bath
Last spring frost
Apr 17
First fall frost
Oct 19
Growing season
185 days
Hardiness zone
6a
More local growing data for Bath: nearby ZIP 62617 weather · frost dates · planting calendar · Illinois frost dates
Nearby towns & communities
Climate data from the nearest NOAA station, Havana, Il (11.5 mi from Bath). Frost dates are 1991–2020 averages, not a forecast. Page updated Nov 4, 2026.