10-day forecast for Saint Charles, OH: 57° to 92°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
92°
Best day: Monday, August 10
70° · 1.1 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1092° / 72°0
Morning74°feels 76°
Afternoon91°feels 99°
Evening86°feels 92°
Overnight76°feels 77°
92 °
Saint Charles, Monday, 10 August
Partly cloudy. High 92°, low 72°.
Pressure30.00 inHg
Wind12.5 mph SW
Humidity63%
Visibility6.2 mi
Dew point72°
Tue, 1191° / 72°0.25
Morning73°feels 74°
Afternoon89°feels 94°
Evening83°feels 88°
Overnight72°feels 73°
91 °
Saint Charles, Tuesday, 11 August
Rain. High 91°, low 72°.
Pressure29.94 inHg
Wind11 mph SW
Humidity70%
Visibility6.2 mi
Dew point73°
Wed, 1287° / 65°0.34
Morning75°feels 76°
Afternoon87°feels 94°
Evening67°feels 68°
Overnight70°feels 72°
87 °
Saint Charles, Wednesday, 12 August
Rain. High 87°, low 65°.
Pressure29.80 inHg
Wind6.3 mph W
Humidity67%
Visibility6.2 mi
Dew point72°
Thu, 1381° / 65°0.01
Morning70°feels 70°
Afternoon79°feels 80°
Evening72°feels 73°
Overnight65°feels 65°
81 °
Saint Charles, Thursday, 13 August
Light rain. High 81°, low 65°.
Pressure29.97 inHg
Wind11.5 mph N
Humidity52%
Visibility—
Dew point59°
Fri, 1470° / 62°1.1
Morning62°feels 63°
Afternoon64°feels 64°
Evening67°feels 67°
Overnight62°feels 62°
70 °
Saint Charles, Friday, 14 August
Heavy rain. High 70°, low 62°.
Pressure30.15 inHg
Wind7 mph NE
Humidity93%
Visibility—
Dew point61°
Sat, 1572° / 57°0
Morning61°feels 60°
Afternoon65°feels 65°
Evening65°feels 65°
Overnight62°feels 61°
72 °
Saint Charles, Saturday, 15 August
Overcast. High 72°, low 57°.
Pressure30.27 inHg
Wind9.7 mph E
Humidity71%
Visibility—
Dew point55°
Sun, 1679° / 60°0.03
Morning65°feels 65°
Afternoon74°feels 75°
Evening71°feels 72°
Overnight65°feels 65°
79 °
Saint Charles, Sunday, 16 August
Light rain. High 79°, low 60°.
Pressure30.09 inHg
Wind7.1 mph NE
Humidity61%
Visibility—
Dew point59°
Mon, 1780° / 65°0.03
Morning69°feels 69°
Afternoon78°feels 78°
Evening71°feels 72°
Overnight66°feels 67°
80 °
Saint Charles, Monday, 17 August
Light rain. High 80°, low 65°.
Pressure30.06 inHg
Wind6.6 mph NE
Humidity65%
Visibility—
Dew point64°
Tue, 1881° / 64°0
Morning69°feels 70°
Afternoon80°feels 81°
Evening74°feels 74°
Overnight69°feels 69°
81 °
Saint Charles, Tuesday, 18 August
Clear. High 81°, low 64°.
Pressure30.06 inHg
Wind4.3 mph NE
Humidity52%
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 Saint Charles, 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.