10-day forecast for Sparta, IL: 67° to 102°, with precipitation expected on 6 days. The table below breaks each day into morning, afternoon, evening and overnight.
102°
Best day: Tuesday, August 11
80° · 2.28 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0995° / 72°0
Morning77°feels 78°
Afternoon93°feels 97°
Evening86°feels 91°
Overnight76°feels 78°
95 °
Sparta, Sunday, 9 August
Partly cloudy. High 95°, low 72°.
Pressure30.00 inHg
Wind10.4 mph S
Humidity51%
Visibility6.2 mi
Dew point70°
Mon, 1099° / 75°0
Morning78°feels 80°
Afternoon98°feels 102°
Evening88°feels 92°
Overnight82°feels 86°
99 °
Sparta, Monday, 10 August
Partly cloudy. High 99°, low 75°.
Pressure29.97 inHg
Wind12.5 mph SW
Humidity43%
Visibility6.2 mi
Dew point69°
Tue, 11102° / 77°0
Morning80°feels 80°
Afternoon101°feels 103°
Evening90°feels 93°
Overnight83°feels 85°
102 °
Sparta, Tuesday, 11 August
Mostly clear. High 102°, low 77°.
Pressure29.88 inHg
Wind11.6 mph SW
Humidity37%
Visibility6.2 mi
Dew point66°
Wed, 1293° / 75°0.19
Morning74°feels 76°
Afternoon86°feels 93°
Evening78°feels 79°
Overnight87°feels 89°
93 °
Sparta, Wednesday, 12 August
Light rain. High 93°, low 75°.
Pressure29.85 inHg
Wind2.8 mph SW
Humidity70%
Visibility6.2 mi
Dew point70°
Thu, 1380° / 71°2.28
Morning72°feels 74°
Afternoon73°feels 75°
Evening76°feels 78°
Overnight72°feels 74°
80 °
Sparta, Thursday, 13 August
Heavy rain. High 80°, low 71°.
Pressure29.91 inHg
Wind10.5 mph E
Humidity97%
Visibility—
Dew point72°
Fri, 1479° / 71°0.15
Morning73°feels 75°
Afternoon78°feels 79°
Evening74°feels 75°
Overnight72°feels 73°
79 °
Sparta, Friday, 14 August
Light rain. High 79°, low 71°.
Pressure30.00 inHg
Wind14 mph E
Humidity83%
Visibility—
Dew point72°
Sat, 1581° / 67°0.2
Morning70°feels 71°
Afternoon76°feels 77°
Evening76°feels 77°
Overnight71°feels 72°
81 °
Sparta, Saturday, 15 August
Light rain. High 81°, low 67°.
Pressure30.15 inHg
Wind13.5 mph SE
Humidity79%
Visibility—
Dew point68°
Sun, 1686° / 67°0.05
Morning73°feels 76°
Afternoon85°feels 91°
Evening78°feels 79°
Overnight72°feels 73°
86 °
Sparta, Sunday, 16 August
Light rain. High 86°, low 67°.
Pressure30.03 inHg
Wind9.9 mph E
Humidity69%
Visibility—
Dew point72°
Mon, 1787° / 70°0.19
Morning74°feels 78°
Afternoon84°feels 91°
Evening79°feels 83°
Overnight72°feels 74°
87 °
Sparta, Monday, 17 August
Rain. High 87°, low 70°.
Pressure30.03 inHg
Wind9.3 mph NE
Humidity73%
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 Sparta, 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.