10-day forecast for Williamsburg, IL: 66° to 98°, with precipitation expected on 7 days. The table below breaks each day into morning, afternoon, evening and overnight.
98°
Best day: Tuesday, August 11
80° · 0.77 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1094° / 75°0
Morning77°feels 79°
Afternoon93°feels 102°
Evening84°feels 88°
Overnight80°feels 80°
94 °
Williamsburg, Monday, 10 August
Overcast. High 94°, low 75°.
Pressure30.00 inHg
Wind13.9 mph SW
Humidity61%
Visibility6.2 mi
Dew point73°
Tue, 1198° / 75°0
Morning78°feels 79°
Afternoon97°feels 106°
Evening89°feels 94°
Overnight82°feels 84°
98 °
Williamsburg, Tuesday, 11 August
Mostly clear. High 98°, low 75°.
Pressure29.91 inHg
Wind12.1 mph SW
Humidity51%
Visibility6.2 mi
Dew point72°
Wed, 1286° / 71°0.22
Morning74°feels 75°
Afternoon78°feels 79°
Evening77°feels 78°
Overnight86°feels 88°
86 °
Williamsburg, Wednesday, 12 August
Light rain. High 86°, low 71°.
Pressure29.85 inHg
Wind6 mph W
Humidity82%
Visibility6.2 mi
Dew point72°
Thu, 1380° / 70°0.77
Morning74°feels 75°
Afternoon78°feels 79°
Evening73°feels 74°
Overnight72°feels 74°
80 °
Williamsburg, Thursday, 13 August
Rain. High 80°, low 70°.
Pressure29.94 inHg
Wind9.7 mph E
Humidity78%
Visibility—
Dew point71°
Fri, 1477° / 70°0.47
Morning72°feels 74°
Afternoon76°feels 77°
Evening73°feels 74°
Overnight70°feels 71°
77 °
Williamsburg, Friday, 14 August
Rain. High 77°, low 70°.
Pressure30.03 inHg
Wind11.6 mph E
Humidity87%
Visibility—
Dew point71°
Sat, 1577° / 67°0.15
Morning68°feels 69°
Afternoon73°feels 74°
Evening74°feels 75°
Overnight69°feels 70°
77 °
Williamsburg, Saturday, 15 August
Light rain. High 77°, low 67°.
Pressure30.18 inHg
Wind12.8 mph SE
Humidity80%
Visibility—
Dew point66°
Sun, 1686° / 66°0.13
Morning71°feels 74°
Afternoon83°feels 89°
Evening78°feels 79°
Overnight72°feels 74°
86 °
Williamsburg, Sunday, 16 August
Light rain. High 86°, low 66°.
Pressure30.03 inHg
Wind9.2 mph E
Humidity73%
Visibility—
Dew point72°
Mon, 1784° / 69°0.06
Morning72°feels 73°
Afternoon78°feels 79°
Evening78°feels 78°
Overnight73°feels 74°
84 °
Williamsburg, Monday, 17 August
Light rain. High 84°, low 69°.
Pressure30.03 inHg
Wind7.6 mph NE
Humidity85%
Visibility—
Dew point72°
Tue, 1885° / 70°0.07
Morning74°feels 77°
Afternoon84°feels 91°
Evening78°feels 78°
Overnight72°feels 74°
85 °
Williamsburg, Tuesday, 18 August
Light rain. High 85°, low 70°.
Pressure30.00 inHg
Wind6.5 mph E
Humidity72%
Visibility—
Dew point73°
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 Williamsburg, 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.