10-day forecast for Washington, IL: 37° to 72°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
72°
Best day: Thursday, October 29
69° · 0.36 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 3066° / 49°0.26
Morning50°feels 47°
Afternoon66°feels 65°
Evening58°feels 57°
Overnight51°feels 50°
66 °
Washington, Friday, 30 October
Rain. High 66°, low 49°.
Pressure30.30 inHg
Wind6.8 mph E
Humidity49%
Visibility6.2 mi
Dew point44°
Sat, 3162° / 52°0.31
Morning52°feels 51°
Afternoon61°feels 60°
Evening56°feels 55°
Overnight53°feels 53°
62 °
Washington, Saturday, 31 October
Rain. High 62°, low 52°.
Pressure30.33 inHg
Wind6.5 mph SE
Humidity82%
Visibility6.2 mi
Dew point50°
Sun, 0164° / 54°0.03
Morning55°feels 54°
Afternoon63°feels 63°
Evening59°feels 59°
Overnight55°feels 54°
64 °
Washington, Sunday, 1 November
Light rain. High 64°, low 54°.
Pressure30.30 inHg
Wind6.9 mph SE
Humidity66%
Visibility6.2 mi
Dew point53°
Mon, 0263° / 55°0.04
Morning56°feels 56°
Afternoon61°feels 60°
Evening61°feels 61°
Overnight57°feels 57°
63 °
Washington, Monday, 2 November
Light rain. High 63°, low 55°.
Pressure30.06 inHg
Wind13.2 mph S
Humidity77%
Visibility—
Dew point53°
Tue, 0369° / 61°0.36
Morning62°feels 63°
Afternoon65°feels 66°
Evening68°feels 67°
Overnight68°feels 68°
69 °
Washington, Tuesday, 3 November
Rain. High 69°, low 61°.
Pressure29.83 inHg
Wind18 mph SE
Humidity94%
Visibility—
Dew point62°
Wed, 0469° / 50°0.26
Morning62°feels 62°
Afternoon61°feels 61°
Evening55°feels 53°
Overnight53°feels 48°
69 °
Washington, Wednesday, 4 November
Light rain. High 69°, low 50°.
Pressure29.62 inHg
Wind23.4 mph S
Humidity84%
Visibility—
Dew point57°
Thu, 0552° / 41°0
Morning44°feels 38°
Afternoon50°feels 46°
Evening44°feels 40°
Overnight42°feels 37°
52 °
Washington, Thursday, 5 November
Clear. High 52°, low 41°.
Pressure29.88 inHg
Wind15.6 mph W
Humidity38%
Visibility—
Dew point25°
Fri, 0653° / 37°0
Morning42°feels 37°
Afternoon51°feels 48°
Evening44°feels 41°
Overnight41°feels 37°
53 °
Washington, Friday, 6 November
Clear. High 53°, low 37°.
Pressure30.00 inHg
Wind10.7 mph W
Humidity32%
Visibility—
Dew point22°
Sat, 0754° / 38°0
Morning42°feels 38°
Afternoon52°feels 48°
Evening48°feels 45°
Overnight47°feels 42°
54 °
Washington, Saturday, 7 November
Overcast. High 54°, low 38°.
Pressure30.15 inHg
Wind9.9 mph SE
Humidity38%
Visibility—
Dew point26°
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.