10-day forecast for Washington, IL: 36° to 70°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
70°
Best day: Thursday, October 29
65° · 1.59 in
Worst day: Tuesday, November 3
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 3066° / 49°0.14
Morning50°feels 47°
Afternoon64°feels 63°
Evening57°feels 56°
Overnight51°feels 50°
66 °
Washington, Friday, 30 October
Rain. High 66°, low 49°.
Pressure30.33 inHg
Wind6.3 mph E
Humidity54%
Visibility6.2 mi
Dew point45°
Sat, 3160° / 54°0.02
Morning54°feels 53°
Afternoon59°feels 58°
Evening56°feels 55°
Overnight57°feels 55°
60 °
Washington, Saturday, 31 October
Light rain. High 60°, low 54°.
Pressure30.30 inHg
Wind3.8 mph SE
Humidity73%
Visibility6.2 mi
Dew point50°
Sun, 0169° / 55°0.02
Morning57°feels 56°
Afternoon68°feels 68°
Evening62°feels 62°
Overnight54°feels 53°
69 °
Washington, Sunday, 1 November
Light rain. High 69°, low 55°.
Pressure30.24 inHg
Wind5.7 mph SE
Humidity65%
Visibility6.2 mi
Dew point54°
Mon, 0266° / 58°0.1
Morning60°feels 59°
Afternoon64°feels 64°
Evening63°feels 63°
Overnight62°feels 62°
66 °
Washington, Monday, 2 November
Light rain. High 66°, low 58°.
Pressure30.00 inHg
Wind16.4 mph S
Humidity78%
Visibility—
Dew point56°
Tue, 0365° / 60°1.59
Morning61°feels 61°
Afternoon62°feels 62°
Evening64°feels 64°
Overnight64°feels 64°
65 °
Washington, Tuesday, 3 November
Rain. High 65°, low 60°.
Pressure29.94 inHg
Wind17.6 mph S
Humidity75%
Visibility—
Dew point54°
Wed, 0465° / 61°0.36
Morning63°feels 63°
Afternoon64°feels 64°
Evening62°feels 62°
Overnight61°feels 62°
65 °
Washington, Wednesday, 4 November
Light rain. High 65°, low 61°.
Pressure29.71 inHg
Wind15.7 mph SE
Humidity85%
Visibility—
Dew point60°
Thu, 0566° / 58°0.21
Morning60°feels 60°
Afternoon65°feels 64°
Evening59°feels 59°
Overnight58°feels 58°
66 °
Washington, Thursday, 5 November
Light rain. High 66°, low 58°.
Pressure29.59 inHg
Wind9.5 mph S
Humidity70%
Visibility—
Dew point55°
Fri, 0656° / 43°0.04
Morning50°feels 48°
Afternoon47°feels 41°
Evening46°feels 42°
Overnight45°feels 40°
56 °
Washington, Friday, 6 November
Light rain. High 56°, low 43°.
Pressure29.88 inHg
Wind15.3 mph N
Humidity82%
Visibility—
Dew point43°
Sat, 0750° / 36°0
Morning40°feels 33°
Afternoon48°feels 44°
Evening43°feels 39°
Overnight41°feels 36°
50 °
Washington, Saturday, 7 November
Clear. High 50°, low 36°.
Pressure30.24 inHg
Wind10.7 mph N
Humidity59%
Visibility—
Dew point33°
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.