Bath, IL Weather & Growing Conditions
Local forecast, frost dates, hardiness zone and planting guidance for Bath, a village in Mason County, Illinois.
Overnight
63°F
Mostly Clear
Mostly clear, with a low around 63. South southeast wind around 2 mph.
7-day forecast for Bath
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Overnight | 63°F | Mostly Clear | 2 mph SSE | 0% |
| Tuesday | 87°F | Sunny | 5 mph S | 0% |
| Tuesday Night | 68°F | Partly Cloudy | 5 mph S | 11% |
| Wednesday | 85°F | Slight Chance Rain Showers then Chance Showers And Thunderstorms | 5 mph S | 33% |
| Wednesday Night | 66°F | Chance Showers And Thunderstorms then Showers And Thunderstorms | 3 mph ENE | 89% |
| Thursday | 82°F | Showers And Thunderstorms | 2 mph S | 81% |
| Thursday Night | 64°F | Partly Cloudy | 1 mph S | 13% |
| Friday | 84°F | Mostly Sunny | 0 mph | 6% |
| Friday Night | 66°F | Slight Chance Showers And Thunderstorms | 0 mph | 20% |
| Saturday | 87°F | Slight Chance Showers And Thunderstorms then Sunny | 0 to 3 mph SSW | 18% |
| Saturday Night | 70°F | Mostly Clear | 3 mph S | 9% |
| Sunday | 89°F | Sunny | 5 to 8 mph SSW | 4% |
| Sunday Night | 72°F | Mostly Clear then Slight Chance Showers And Thunderstorms | 6 mph SSW | 15% |
| Monday | 90°F | Slight Chance Showers And Thunderstorms then Mostly Sunny | 7 mph SSW | 15% |
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 Aug 4, 2026.