10-day forecast for Royal, IL: 58° to 93°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
93°
Best day: Sunday, August 9
66° · 0.21 in
Worst day: Saturday, August 15
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0993° / 69°0
Morning75°feels 77°
Afternoon91°feels 104°
Evening86°feels 98°
Overnight71°feels 72°
93 °
Royal, Sunday, 9 August
Clear. High 93°, low 69°.
Pressure30.00 inHg
Wind13 mph SW
Humidity72%
Visibility6.2 mi
Dew point74°
Mon, 1090° / 75°0.09
Morning80°feels 80°
Afternoon88°feels 100°
Evening82°feels 89°
Overnight80°feels 84°
90 °
Royal, Monday, 10 August
Rain. High 90°, low 75°.
Pressure29.94 inHg
Wind11.4 mph SW
Humidity72%
Visibility6.2 mi
Dew point75°
Tue, 1187° / 71°0.14
Morning75°feels 76°
Afternoon83°feels 90°
Evening81°feels 87°
Overnight73°feels 74°
87 °
Royal, Tuesday, 11 August
Light rain. High 87°, low 71°.
Pressure29.85 inHg
Wind1 mph W
Humidity77%
Visibility6.2 mi
Dew point75°
Wed, 1283° / 71°0.05
Morning74°feels 75°
Afternoon84°feels 90°
Evening73°feels 75°
Overnight74°feels 76°
83 °
Royal, Wednesday, 12 August
Light rain. High 83°, low 71°.
Pressure29.85 inHg
Wind1.5 mph W
Humidity77%
Visibility6.2 mi
Dew point73°
Thu, 1379° / 66°0.13
Morning69°feels 70°
Afternoon77°feels 77°
Evening68°feels 69°
Overnight66°feels 67°
79 °
Royal, Thursday, 13 August
Light rain. High 79°, low 66°.
Pressure29.97 inHg
Wind14.3 mph E
Humidity67%
Visibility—
Dew point65°
Fri, 1476° / 61°0.03
Morning66°feels 66°
Afternoon76°feels 76°
Evening71°feels 71°
Overnight64°feels 64°
76 °
Royal, Friday, 14 August
Light rain. High 76°, low 61°.
Pressure30.09 inHg
Wind8.3 mph E
Humidity69%
Visibility—
Dew point63°
Sat, 1566° / 58°0.21
Morning61°feels 61°
Afternoon63°feels 63°
Evening65°feels 65°
Overnight61°feels 60°
66 °
Royal, Saturday, 15 August
Rain. High 66°, low 58°.
Pressure30.27 inHg
Wind9.8 mph E
Humidity95%
Visibility—
Dew point61°
Sun, 1671° / 58°0
Morning64°feels 64°
Afternoon69°feels 69°
Evening70°feels 71°
Overnight67°feels 67°
71 °
Royal, Sunday, 16 August
Overcast. High 71°, low 58°.
Pressure30.12 inHg
Wind6.7 mph E
Humidity81%
Visibility—
Dew point61°
Mon, 1776° / 62°0.13
Morning66°feels 66°
Afternoon71°feels 72°
Evening74°feels 75°
Overnight71°feels 72°
76 °
Royal, Monday, 17 August
Light rain. High 76°, low 62°.
Pressure30.06 inHg
Wind6.6 mph N
Humidity89%
Visibility—
Dew point66°
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 Royal, 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.