10-day forecast for Mascoutah, IL: 66° to 100°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
100°
Best day: Tuesday, August 11
77° · 0.19 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1099° / 73°0.03
Morning79°feels 79°
Afternoon99°feels 106°
Evening87°feels 92°
Overnight82°feels 86°
99 °
Mascoutah, Monday, 10 August
Light rain. High 99°, low 73°.
Pressure29.94 inHg
Wind12.1 mph SW
Humidity48%
Visibility6.2 mi
Dew point71°
Tue, 11100° / 72°0.01
Morning80°feels 80°
Afternoon99°feels 104°
Evening88°feels 90°
Overnight72°feels 73°
100 °
Mascoutah, Tuesday, 11 August
Light rain. High 100°, low 72°.
Pressure29.88 inHg
Wind11.6 mph SW
Humidity45%
Visibility6.2 mi
Dew point70°
Wed, 1298° / 76°0.03
Morning78°feels 79°
Afternoon96°feels 103°
Evening83°feels 92°
Overnight86°feels 88°
98 °
Mascoutah, Wednesday, 12 August
Light rain. High 98°, low 76°.
Pressure29.83 inHg
Wind9.3 mph W
Humidity51%
Visibility6.2 mi
Dew point71°
Thu, 1387° / 71°0.25
Morning76°feels 79°
Afternoon85°feels 92°
Evening78°feels 79°
Overnight73°feels 75°
87 °
Mascoutah, Thursday, 13 August
Light rain. High 87°, low 71°.
Pressure29.91 inHg
Wind15.4 mph E
Humidity66%
Visibility—
Dew point72°
Fri, 1477° / 67°0.19
Morning68°feels 69°
Afternoon71°feels 72°
Evening72°feels 73°
Overnight68°feels 69°
77 °
Mascoutah, Friday, 14 August
Light rain. High 77°, low 67°.
Pressure30.06 inHg
Wind13.7 mph E
Humidity84%
Visibility—
Dew point65°
Sat, 1588° / 66°0.09
Morning71°feels 73°
Afternoon82°feels 86°
Evening81°feels 87°
Overnight74°feels 76°
88 °
Mascoutah, Saturday, 15 August
Light rain. High 88°, low 66°.
Pressure30.12 inHg
Wind11.1 mph E
Humidity72%
Visibility—
Dew point69°
Sun, 1689° / 70°0
Morning76°feels 79°
Afternoon86°feels 95°
Evening82°feels 90°
Overnight76°feels 77°
89 °
Mascoutah, Sunday, 16 August
Partly cloudy. High 89°, low 70°.
Pressure30.03 inHg
Wind9.6 mph E
Humidity65%
Visibility—
Dew point72°
Mon, 1787° / 72°0.06
Morning76°feels 78°
Afternoon85°feels 90°
Evening80°feels 85°
Overnight73°feels 74°
87 °
Mascoutah, Monday, 17 August
Light rain. High 87°, low 72°.
Pressure30.06 inHg
Wind6.8 mph NE
Humidity63%
Visibility—
Dew point69°
Tue, 1892° / 68°0.01
Morning74°feels 76°
Afternoon87°feels 93°
Evening83°feels 88°
Overnight77°feels 77°
92 °
Mascoutah, Tuesday, 18 August
Light rain. High 92°, low 68°.
Pressure29.97 inHg
Wind10.5 mph SE
Humidity55%
Visibility—
Dew point67°
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 Mascoutah, 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.