Palatine, IL Weather & Growing Conditions
Today
85°F
Mostly Sunny
Mostly sunny, with a high near 85. Southwest wind around 10 mph.
7-day forecast
| When | Temp | Forecast | Wind | Precip |
|---|---|---|---|---|
| Today | 85°F | Mostly Sunny | 10 mph SW | 0% |
| Tonight | 68°F | Mostly Cloudy then Chance Showers And Thunderstorms | 5 mph SW | 43% |
| Wednesday | 79°F | Showers And Thunderstorms Likely | 5 mph WSW | 74% |
| Wednesday Night | 64°F | Showers And Thunderstorms | 0 to 5 mph NW | 85% |
| Thursday | 78°F | Rain Showers Likely then Slight Chance Showers And Thunderstorms | 0 to 5 mph NNE | 58% |
| Thursday Night | 62°F | Slight Chance Showers And Thunderstorms then Partly Cloudy | 0 to 5 mph SSW | 18% |
| Friday | 82°F | Mostly Sunny | 0 to 5 mph S | 3% |
| Friday Night | 64°F | Mostly Clear | 0 to 5 mph S | 7% |
| Saturday | 85°F | Mostly Sunny | 5 to 10 mph SW | 10% |
| Saturday Night | 69°F | Partly Cloudy then Slight Chance Showers And Thunderstorms | 5 mph SSW | 21% |
| Sunday | 86°F | Slight Chance Showers And Thunderstorms | 5 to 10 mph SW | 21% |
| Sunday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph SW | 45% |
| Monday | 85°F | Chance Showers And Thunderstorms | 5 to 10 mph SSW | 45% |
| Monday Night | 69°F | Chance Showers And Thunderstorms | 5 to 10 mph W | 47% |
Forecast source: National Weather Service (api.weather.gov). Updated through the day.
Growing snapshot for Palatine, IL
Last spring frost
Apr 25
First fall frost
Oct 19
Growing season
177 days
Hardiness zone
5b
Explore more for Palatine, IL: full frost dates · planting calendar · Illinois frost dates
Climate data from the nearest NOAA station, Barrington 3Sw, Il (5.1 mi). Frost dates are 1991–2020 averages, not a forecast. Page updated Aug 4, 2026.