10-day forecast for Saint Johns, PA: 48° to 84°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
81°
Best day: Monday, August 10
84° · 0.56 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1081° / 66°0
Morning70°feels 70°
Afternoon79°feels 79°
Evening74°feels 74°
Overnight68°feels 68°
81 °
Saint Johns, Monday, 10 August
Overcast. High 81°, low 66°.
Pressure30.00 inHg
Wind6.9 mph W
Humidity48%
Visibility6.2 mi
Dew point61°
Tue, 1184° / 64°0.56
Morning66°feels 67°
Afternoon83°feels 82°
Evening69°feels 69°
Overnight68°feels 69°
84 °
Saint Johns, Tuesday, 11 August
Heavy rain. High 84°, low 64°.
Pressure29.88 inHg
Wind10.8 mph NW
Humidity42%
Visibility6.2 mi
Dew point55°
Wed, 1281° / 63°0.01
Morning67°feels 67°
Afternoon81°feels 82°
Evening71°feels 71°
Overnight65°feels 65°
81 °
Saint Johns, Wednesday, 12 August
Light rain. High 81°, low 63°.
Pressure29.77 inHg
Wind7.2 mph W
Humidity57%
Visibility6.2 mi
Dew point61°
Thu, 1377° / 57°0.01
Morning69°feels 69°
Afternoon75°feels 74°
Evening64°feels 63°
Overnight65°feels 66°
77 °
Saint Johns, Thursday, 13 August
Light rain. High 77°, low 57°.
Pressure29.80 inHg
Wind13 mph NW
Humidity35%
Visibility—
Dew point46°
Fri, 1469° / 49°0
Morning59°feels 57°
Afternoon66°feels 65°
Evening57°feels 56°
Overnight53°feels 52°
69 °
Saint Johns, Friday, 14 August
Partly cloudy. High 69°, low 49°.
Pressure30.03 inHg
Wind12.1 mph NW
Humidity45%
Visibility—
Dew point44°
Sat, 1573° / 48°0
Morning59°feels 58°
Afternoon71°feels 69°
Evening60°feels 58°
Overnight52°feels 51°
73 °
Saint Johns, Saturday, 15 August
Clear. High 73°, low 48°.
Pressure30.15 inHg
Wind12.7 mph NW
Humidity37%
Visibility—
Dew point42°
Sun, 1674° / 48°0
Morning60°feels 59°
Afternoon72°feels 71°
Evening62°feels 61°
Overnight56°feels 55°
74 °
Saint Johns, Sunday, 16 August
Overcast. High 74°, low 48°.
Pressure30.15 inHg
Wind4.1 mph NW
Humidity39%
Visibility—
Dew point45°
Mon, 1778° / 56°0.01
Morning65°feels 64°
Afternoon75°feels 75°
Evening63°feels 63°
Overnight63°feels 62°
78 °
Saint Johns, Monday, 17 August
Light rain. High 78°, low 56°.
Pressure30.00 inHg
Wind5 mph SW
Humidity40%
Visibility—
Dew point49°
Tue, 1881° / 60°0
Morning68°feels 67°
Afternoon78°feels 78°
Evening66°feels 66°
Overnight62°feels 62°
81 °
Saint Johns, Tuesday, 18 August
Partly cloudy. High 81°, low 60°.
Pressure30.03 inHg
Wind3.8 mph NW
Humidity41%
Visibility—
Dew point53°
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 Johns, 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.