10-day forecast for Saint Charles, PA: 49° to 86°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
86°
Best day: Sunday, August 9
82° · 1.06 in
Worst day: Monday, August 10
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1082° / 66°1.06
Morning68°feels 69°
Afternoon80°feels 80°
Evening79°feels 81°
Overnight68°feels 68°
82 °
Saint Charles, Monday, 10 August
Heavy rain. High 82°, low 66°.
Pressure30.00 inHg
Wind9.7 mph SW
Humidity80%
Visibility6.2 mi
Dew point68°
Tue, 1185° / 63°0.61
Morning65°feels 66°
Afternoon83°feels 85°
Evening73°feels 74°
Overnight66°feels 67°
85 °
Saint Charles, Tuesday, 11 August
Heavy rain. High 85°, low 63°.
Pressure29.94 inHg
Wind8 mph W
Humidity66%
Visibility6.2 mi
Dew point65°
Wed, 1280° / 65°0.01
Morning66°feels 67°
Afternoon72°feels 73°
Evening72°feels 73°
Overnight66°feels 67°
80 °
Saint Charles, Wednesday, 12 August
Light rain. High 80°, low 65°.
Pressure29.80 inHg
Wind6.7 mph SW
Humidity93%
Visibility6.2 mi
Dew point67°
Thu, 1374° / 57°0.13
Morning67°feels 67°
Afternoon72°feels 72°
Evening62°feels 61°
Overnight64°feels 65°
74 °
Saint Charles, Thursday, 13 August
Light rain. High 74°, low 57°.
Pressure29.91 inHg
Wind15.5 mph NW
Humidity46%
Visibility—
Dew point51°
Fri, 1472° / 51°0
Morning60°feels 59°
Afternoon71°feels 70°
Evening60°feels 59°
Overnight55°feels 54°
72 °
Saint Charles, Friday, 14 August
Partly cloudy. High 72°, low 51°.
Pressure30.09 inHg
Wind11.6 mph NW
Humidity46%
Visibility—
Dew point48°
Sat, 1571° / 49°0
Morning58°feels 57°
Afternoon70°feels 69°
Evening60°feels 59°
Overnight54°feels 53°
71 °
Saint Charles, Saturday, 15 August
Partly cloudy. High 71°, low 49°.
Pressure30.24 inHg
Wind7.9 mph N
Humidity43%
Visibility—
Dew point45°
Sun, 1668° / 50°0
Morning58°feels 57°
Afternoon66°feels 65°
Evening60°feels 59°
Overnight55°feels 54°
68 °
Saint Charles, Sunday, 16 August
Overcast. High 68°, low 50°.
Pressure30.15 inHg
Wind3.7 mph SW
Humidity61%
Visibility—
Dew point51°
Mon, 1778° / 53°0
Morning64°feels 63°
Afternoon75°feels 75°
Evening67°feels 67°
Overnight60°feels 60°
78 °
Saint Charles, Monday, 17 August
Mostly clear. High 78°, low 53°.
Pressure30.03 inHg
Wind4.8 mph NW
Humidity46%
Visibility—
Dew point52°
Tue, 1879° / 57°0
Morning66°feels 66°
Afternoon77°feels 77°
Evening69°feels 69°
Overnight62°feels 62°
79 °
Saint Charles, Tuesday, 18 August
Clear. High 79°, low 57°.
Pressure30.03 inHg
Wind5.6 mph N
Humidity50%
Visibility—
Dew point56°
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, PA 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.