10-day forecast for Marissa, IL: 66° to 101°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
101°
Best day: Tuesday, August 11
77° · 0.15 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 10100° / 75°0
Morning79°feels 79°
Afternoon99°feels 104°
Evening87°feels 89°
Overnight81°feels 85°
100 °
Marissa, Monday, 10 August
Mostly clear. High 100°, low 75°.
Pressure29.94 inHg
Wind12 mph SW
Humidity42%
Visibility6.2 mi
Dew point69°
Tue, 11101° / 77°0
Morning80°feels 80°
Afternoon100°feels 102°
Evening87°feels 89°
Overnight78°feels 78°
101 °
Marissa, Tuesday, 11 August
Partly cloudy. High 101°, low 77°.
Pressure29.88 inHg
Wind12.2 mph SW
Humidity38%
Visibility6.2 mi
Dew point67°
Wed, 1299° / 77°0.05
Morning78°feels 79°
Afternoon97°feels 104°
Evening84°feels 92°
Overnight86°feels 88°
99 °
Marissa, Wednesday, 12 August
Light rain. High 99°, low 77°.
Pressure29.83 inHg
Wind10.3 mph W
Humidity46%
Visibility6.2 mi
Dew point70°
Thu, 1390° / 73°0.17
Morning77°feels 80°
Afternoon85°feels 93°
Evening81°feels 87°
Overnight73°feels 75°
90 °
Marissa, Thursday, 13 August
Light rain. High 90°, low 73°.
Pressure29.91 inHg
Wind15.5 mph E
Humidity67%
Visibility—
Dew point72°
Fri, 1477° / 68°0.15
Morning70°feels 71°
Afternoon74°feels 74°
Evening75°feels 76°
Overnight69°feels 71°
77 °
Marissa, Friday, 14 August
Light rain. High 77°, low 68°.
Pressure30.06 inHg
Wind13.3 mph NE
Humidity82%
Visibility—
Dew point67°
Sat, 1591° / 66°0.06
Morning72°feels 74°
Afternoon84°feels 90°
Evening82°feels 87°
Overnight75°feels 76°
91 °
Marissa, Saturday, 15 August
Light rain. High 91°, low 66°.
Pressure30.12 inHg
Wind12.7 mph E
Humidity65%
Visibility—
Dew point69°
Sun, 1692° / 71°0
Morning78°feels 81°
Afternoon89°feels 97°
Evening83°feels 91°
Overnight76°feels 78°
92 °
Marissa, Sunday, 16 August
Partly cloudy. High 92°, low 71°.
Pressure30.03 inHg
Wind12.1 mph N
Humidity56%
Visibility—
Dew point70°
Mon, 1790° / 72°0.14
Morning76°feels 78°
Afternoon85°feels 91°
Evening81°feels 85°
Overnight73°feels 74°
90 °
Marissa, Monday, 17 August
Light rain. High 90°, low 72°.
Pressure30.03 inHg
Wind8.8 mph NE
Humidity61%
Visibility—
Dew point69°
Tue, 1893° / 69°0.02
Morning75°feels 77°
Afternoon88°feels 94°
Evening83°feels 89°
Overnight78°feels 80°
93 °
Marissa, Tuesday, 18 August
Light rain. High 93°, low 69°.
Pressure29.97 inHg
Wind11.4 mph SE
Humidity53%
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 Marissa, 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.