10-day forecast for Washington, IL: 48° to 76°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
76°
Best day: Wednesday, October 28
56° · 0.79 in
Worst day: Thursday, November 5
Tap any day below to see morning, afternoon, evening and overnight.
Wed, 2876° / 52°0
Morning55°feels 54°
Afternoon75°feels 74°
Evening66°feels 65°
Overnight58°feels 57°
76 °
Washington, Wednesday, 28 October
Clear. High 76°, low 52°.
Pressure30.18 inHg
Wind7.3 mph S
Humidity61%
Visibility6.2 mi
Dew point53°
Thu, 2970° / 56°0
Morning57°feels 57°
Afternoon68°feels 68°
Evening60°feels 60°
Overnight61°feels 60°
70 °
Washington, Thursday, 29 October
Overcast. High 70°, low 56°.
Pressure30.12 inHg
Wind7 mph W
Humidity60%
Visibility6.2 mi
Dew point56°
Fri, 3070° / 48°0.02
Morning49°feels 46°
Afternoon68°feels 68°
Evening61°feels 61°
Overnight52°feels 51°
70 °
Washington, Friday, 30 October
Light rain. High 70°, low 48°.
Pressure30.27 inHg
Wind6.1 mph SE
Humidity60%
Visibility6.2 mi
Dew point51°
Sat, 3171° / 58°0.13
Morning60°feels 60°
Afternoon68°feels 68°
Evening60°feels 60°
Overnight59°feels 59°
71 °
Washington, Saturday, 31 October
Rain. High 71°, low 58°.
Pressure30.21 inHg
Wind5.2 mph S
Humidity73%
Visibility6.2 mi
Dew point58°
Sun, 0170° / 54°0
Morning58°feels 58°
Afternoon68°feels 68°
Evening62°feels 62°
Overnight58°feels 58°
70 °
Washington, Sunday, 1 November
Light rain. High 70°, low 54°.
Pressure30.18 inHg
Wind7.1 mph SE
Humidity62%
Visibility—
Dew point54°
Mon, 0263° / 59°0
Morning60°feels 60°
Afternoon62°feels 62°
Evening58°feels 58°
Overnight58°feels 58°
63 °
Washington, Monday, 2 November
Overcast. High 63°, low 59°.
Pressure29.85 inHg
Wind8.5 mph NE
Humidity81%
Visibility—
Dew point56°
Tue, 0360° / 56°0.01
Morning57°feels 56°
Afternoon60°feels 59°
Evening58°feels 56°
Overnight56°feels 55°
60 °
Washington, Tuesday, 3 November
Light rain. High 60°, low 56°.
Pressure29.94 inHg
Wind16.8 mph E
Humidity73%
Visibility—
Dew point51°
Wed, 0455° / 51°0.23
Morning52°feels 51°
Afternoon52°feels 51°
Evening53°feels 52°
Overnight53°feels 53°
55 °
Washington, Wednesday, 4 November
Rain. High 55°, low 51°.
Pressure29.88 inHg
Wind17.5 mph NE
Humidity88%
Visibility—
Dew point48°
Thu, 0556° / 52°0.79
Morning55°feels 55°
Afternoon55°feels 55°
Evening54°feels 53°
Overnight53°feels 53°
56 °
Washington, Thursday, 5 November
Rain. High 56°, low 52°.
Pressure29.65 inHg
Wind15.5 mph NE
Humidity96%
Visibility—
Dew point54°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Washington, IL around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.