Watson, IL Weather & Growing Conditions
Today
94°F
Mostly Sunny
Mostly sunny, with a high near 94. Southwest wind around 7 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 94°F | Mostly Sunny | 7 mph SW | 10% |
| Tonight | 70°F | Mostly Cloudy | 5 mph S | 4% |
| Sunday | 91°F | Mostly Sunny then Chance Showers And Thunderstorms | 3 to 7 mph NW | 25% |
| Sunday Night | 63°F | Chance Showers And Thunderstorms | 6 to 9 mph NE | 51% |
| Monday | 76°F | Showers And Thunderstorms Likely | 10 mph NE | 68% |
| Monday Night | 56°F | Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms | 7 to 12 mph NE | 61% |
| Tuesday | 70°F | Slight Chance Showers And Thunderstorms | 12 mph NNE | 22% |
| Tuesday Night | 53°F | Slight Chance Showers And Thunderstorms then Mostly Cloudy | 5 to 12 mph NNE | 18% |
| Wednesday | 73°F | Mostly Sunny | 9 mph N | 4% |
| Wednesday Night | 54°F | Partly Cloudy | 2 to 9 mph N | 3% |
| Thursday | 74°F | Mostly Sunny | 5 to 8 mph N | 2% |
| Thursday Night | 55°F | Partly Cloudy | 2 to 7 mph NNE | 2% |
| Friday | 76°F | Mostly Sunny | 5 to 8 mph NNE | 2% |
| Friday Night | 54°F | Partly Cloudy | 3 to 7 mph NE | 2% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Watson, IL
Last spring frost
Apr 13
First fall frost
Oct 24
Growing season
191 days
Hardiness zone
6b
Explore more for Watson, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Effingham 3Sw, Il (7.3 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Sep 19, 2026.