10-day forecast for Collinsville, OH: 59° to 94°, with precipitation expected on 5 days. The table below breaks each day into morning, afternoon, evening and overnight.
91°
Best day: Sunday, August 9
91° · 1.33 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1094° / 72°0.17
Morning74°feels 76°
Afternoon92°feels 99°
Evening87°feels 95°
Overnight75°feels 77°
94 °
Collinsville, Monday, 10 August
Rain. High 94°, low 72°.
Pressure30.03 inHg
Wind12.9 mph S
Humidity65%
Visibility6.2 mi
Dew point71°
Tue, 1191° / 65°1.33
Morning68°feels 69°
Afternoon84°feels 91°
Evening84°feels 90°
Overnight73°feels 74°
91 °
Collinsville, Tuesday, 11 August
Heavy rain. High 91°, low 65°.
Pressure29.97 inHg
Wind12.8 mph S
Humidity93%
Visibility6.2 mi
Dew point72°
Wed, 1287° / 66°0.19
Morning74°feels 75°
Afternoon85°feels 93°
Evening79°feels 79°
Overnight66°feels 67°
87 °
Collinsville, Wednesday, 12 August
Rain. High 87°, low 66°.
Pressure29.83 inHg
Wind13 mph W
Humidity74%
Visibility6.2 mi
Dew point72°
Thu, 1379° / 65°0.05
Morning65°feels 65°
Afternoon77°feels 78°
Evening70°feels 71°
Overnight70°feels 72°
79 °
Collinsville, Thursday, 13 August
Light rain. High 79°, low 65°.
Pressure29.94 inHg
Wind9.4 mph SE
Humidity61%
Visibility—
Dew point62°
Fri, 1475° / 65°0.17
Morning66°feels 67°
Afternoon69°feels 70°
Evening70°feels 70°
Overnight66°feels 66°
75 °
Collinsville, Friday, 14 August
Light rain. High 75°, low 65°.
Pressure30.09 inHg
Wind9.6 mph NE
Humidity87%
Visibility—
Dew point65°
Sat, 1577° / 59°0
Morning64°feels 63°
Afternoon74°feels 74°
Evening68°feels 68°
Overnight64°feels 63°
77 °
Collinsville, Saturday, 15 August
Overcast. High 77°, low 59°.
Pressure30.24 inHg
Wind10.3 mph E
Humidity51%
Visibility—
Dew point54°
Sun, 1686° / 61°0.02
Morning69°feels 70°
Afternoon84°feels 89°
Evening78°feels 79°
Overnight72°feels 73°
86 °
Collinsville, Sunday, 16 August
Light rain. High 86°, low 61°.
Pressure29.94 inHg
Wind10.8 mph NW
Humidity62%
Visibility—
Dew point68°
Mon, 1776° / 64°0
Morning71°feels 72°
Afternoon75°feels 75°
Evening69°feels 69°
Overnight65°feels 65°
76 °
Collinsville, Monday, 17 August
Light rain. High 76°, low 64°.
Pressure30.03 inHg
Wind9 mph N
Humidity65%
Visibility—
Dew point63°
Tue, 1882° / 61°0
Morning67°feels 67°
Afternoon79°feels 79°
Evening75°feels 75°
Overnight68°feels 68°
82 °
Collinsville, Tuesday, 18 August
Partly cloudy. High 82°, low 61°.
Pressure29.94 inHg
Wind4.9 mph SE
Humidity54%
Visibility—
Dew point59°
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 Collinsville, OH 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.