10-day forecast for Thomas, IL: 59° to 90°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
90°
Best day: Sunday, August 9
63° · 0.1 in
Worst day: Saturday, August 15
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0990° / 64°0
Morning72°feels 73°
Afternoon86°feels 99°
Evening83°feels 91°
Overnight66°feels 66°
90 °
Thomas, Sunday, 9 August
Partly cloudy. High 90°, low 64°.
Pressure29.85 inHg
Wind15.9 mph S
Humidity77%
Visibility6.2 mi
Dew point76°
Mon, 1088° / 72°0
Morning74°feels 76°
Afternoon86°feels 93°
Evening78°feels 80°
Overnight76°feels 77°
88 °
Thomas, Monday, 10 August
Overcast. High 88°, low 72°.
Pressure29.88 inHg
Wind6.7 mph S
Humidity72%
Visibility6.2 mi
Dew point73°
Tue, 1188° / 74°0
Morning77°feels 78°
Afternoon87°feels 96°
Evening80°feels 85°
Overnight74°feels 74°
88 °
Thomas, Tuesday, 11 August
Overcast. High 88°, low 74°.
Pressure29.77 inHg
Wind12 mph SW
Humidity74%
Visibility6.2 mi
Dew point74°
Wed, 1280° / 69°0.04
Morning73°feels 74°
Afternoon78°feels 80°
Evening73°feels 74°
Overnight72°feels 73°
80 °
Thomas, Wednesday, 12 August
Light rain. High 80°, low 69°.
Pressure29.88 inHg
Wind5.9 mph N
Humidity80%
Visibility6.2 mi
Dew point73°
Thu, 1374° / 62°0.04
Morning65°feels 65°
Afternoon73°feels 74°
Evening65°feels 66°
Overnight63°feels 64°
74 °
Thomas, Thursday, 13 August
Light rain. High 74°, low 62°.
Pressure30.00 inHg
Wind7.7 mph E
Humidity78%
Visibility—
Dew point65°
Fri, 1476° / 60°0
Morning65°feels 65°
Afternoon75°feels 75°
Evening70°feels 70°
Overnight65°feels 65°
76 °
Thomas, Friday, 14 August
Partly cloudy. High 76°, low 60°.
Pressure30.12 inHg
Wind7.9 mph E
Humidity61%
Visibility—
Dew point59°
Sat, 1563° / 60°0.1
Morning62°feels 61°
Afternoon61°feels 61°
Evening61°feels 61°
Overnight61°feels 60°
63 °
Thomas, Saturday, 15 August
Light rain. High 63°, low 60°.
Pressure30.27 inHg
Wind8.3 mph E
Humidity96%
Visibility—
Dew point60°
Sun, 1674° / 59°0
Morning64°feels 64°
Afternoon71°feels 71°
Evening70°feels 71°
Overnight64°feels 65°
74 °
Thomas, Sunday, 16 August
Overcast. High 74°, low 59°.
Pressure30.15 inHg
Wind6.8 mph E
Humidity72%
Visibility—
Dew point60°
Mon, 1778° / 64°0.06
Morning68°feels 68°
Afternoon76°feels 77°
Evening74°feels 75°
Overnight68°feels 68°
78 °
Thomas, Monday, 17 August
Light rain. High 78°, low 64°.
Pressure30.06 inHg
Wind5.1 mph S
Humidity76%
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 Thomas, 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.