10-day forecast for Washington, IL: 30° to 66°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
66°
Best day: Wednesday, November 18
55° · 0.36 in
Worst day: Wednesday, November 11
Tap any day below to see morning, afternoon, evening and overnight.
Tue, 1063° / 43°0
Morning48°feels 47°
Afternoon63°feels 61°
Evening46°feels 46°
Overnight49°feels 45°
63 °
Washington, Tuesday, 10 November
Clear. High 63°, low 43°.
Pressure30.09 inHg
Wind3.2 mph NW
Humidity57%
Visibility6.2 mi
Dew point44°
Wed, 1155° / 43°0.36
Morning46°feels 42°
Afternoon52°feels 51°
Evening47°feels 43°
Overnight43°feels 42°
55 °
Washington, Wednesday, 11 November
Heavy rain. High 55°, low 43°.
Pressure29.80 inHg
Wind5.1 mph E
Humidity94%
Visibility2.7 mi
Dew point51°
Thu, 1245° / 39°0
Morning41°feels 37°
Afternoon45°feels 39°
Evening40°feels 34°
Overnight42°feels 38°
45 °
Washington, Thursday, 12 November
Overcast. High 45°, low 39°.
Pressure30.00 inHg
Wind10.8 mph N
Humidity59%
Visibility6.2 mi
Dew point30°
Fri, 1340° / 35°0
Morning37°feels 30°
Afternoon40°feels 34°
Evening38°feels 33°
Overnight35°feels 30°
40 °
Washington, Friday, 13 November
Overcast. High 40°, low 35°.
Pressure30.09 inHg
Wind11.7 mph N
Humidity65%
Visibility—
Dew point29°
Sat, 1444° / 30°0
Morning34°feels 28°
Afternoon42°feels 39°
Evening37°feels 37°
Overnight34°feels 33°
44 °
Washington, Saturday, 14 November
Clear. High 44°, low 30°.
Pressure30.27 inHg
Wind6.4 mph NW
Humidity62%
Visibility—
Dew point29°
Sun, 1553° / 32°0
Morning38°feels 33°
Afternoon50°feels 46°
Evening46°feels 42°
Overnight43°feels 38°
53 °
Washington, Sunday, 15 November
Overcast. High 53°, low 32°.
Pressure30.06 inHg
Wind10.3 mph SE
Humidity36%
Visibility—
Dew point22°
Mon, 1655° / 47°0.07
Morning51°feels 51°
Afternoon54°feels 54°
Evening52°feels 51°
Overnight50°feels 47°
55 °
Washington, Monday, 16 November
Light rain. High 55°, low 47°.
Pressure29.94 inHg
Wind7.1 mph SE
Humidity93%
Visibility—
Dew point52°
Tue, 1763° / 48°0
Morning52°feels 50°
Afternoon61°feels 60°
Evening58°feels 57°
Overnight55°feels 54°
63 °
Washington, Tuesday, 17 November
Clear. High 63°, low 48°.
Pressure30.15 inHg
Wind6.5 mph E
Humidity68%
Visibility—
Dew point49°
Wed, 1866° / 53°0
Morning57°feels 56°
Afternoon64°feels 63°
Evening58°feels 57°
Overnight55°feels 54°
66 °
Washington, Wednesday, 18 November
Overcast. High 66°, low 53°.
Pressure30.27 inHg
Wind9.3 mph S
Humidity61%
Visibility—
Dew point50°
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.