10-day forecast for Markham, PA: 34° to 79°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
79°
Best day: Wednesday, October 14
64° · 1.12 in
Worst day: Sunday, October 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1275° / 54°0.55
Morning57°feels 57°
Afternoon75°feels 75°
Evening67°feels 68°
Overnight58°feels 58°
75 °
Markham, Monday, 12 October
Heavy rain. High 75°, low 54°.
Pressure29.85 inHg
Wind11 mph NW
Humidity70%
Visibility6.2 mi
Dew point58°
Tue, 1376° / 57°0
Morning58°feels 58°
Afternoon76°feels 76°
Evening69°feels 69°
Overnight60°feels 61°
76 °
Markham, Tuesday, 13 October
Clear. High 76°, low 57°.
Pressure29.97 inHg
Wind6.8 mph SW
Humidity69%
Visibility6.2 mi
Dew point62°
Wed, 1479° / 65°0.01
Morning67°feels 67°
Afternoon79°feels 79°
Evening72°feels 73°
Overnight66°feels 67°
79 °
Markham, Wednesday, 14 October
Light rain. High 79°, low 65°.
Pressure29.91 inHg
Wind10.9 mph W
Humidity68%
Visibility6.2 mi
Dew point66°
Thu, 1567° / 56°0
Morning58°feels 57°
Afternoon64°feels 63°
Evening64°feels 63°
Overnight63°feels 63°
67 °
Markham, Thursday, 15 October
Partly cloudy. High 67°, low 56°.
Pressure30.21 inHg
Wind9.4 mph N
Humidity63%
Visibility—
Dew point50°
Fri, 1676° / 55°0.29
Morning59°feels 59°
Afternoon65°feels 65°
Evening61°feels 60°
Overnight55°feels 54°
76 °
Markham, Friday, 16 October
Rain. High 76°, low 55°.
Pressure29.68 inHg
Wind18.2 mph NW
Humidity96%
Visibility—
Dew point63°
Sat, 1753° / 37°0
Morning47°feels 41°
Afternoon48°feels 42°
Evening46°feels 39°
Overnight39°feels 31°
53 °
Markham, Saturday, 17 October
Mostly clear. High 53°, low 37°.
Pressure29.85 inHg
Wind17.6 mph NW
Humidity52%
Visibility—
Dew point31°
Sun, 1846° / 34°0
Morning36°feels 27°
Afternoon42°feels 35°
Evening45°feels 40°
Overnight38°feels 34°
46 °
Markham, Sunday, 18 October
Clear. High 46°, low 34°.
Pressure30.39 inHg
Wind16 mph NW
Humidity43%
Visibility—
Dew point20°
Mon, 1953° / 36°0
Morning39°feels 38°
Afternoon47°feels 45°
Evening51°feels 49°
Overnight42°feels 40°
53 °
Markham, Monday, 19 October
Overcast. High 53°, low 36°.
Pressure30.65 inHg
Wind6.8 mph SW
Humidity41%
Visibility—
Dew point22°
Tue, 2061° / 42°0
Morning46°feels 43°
Afternoon56°feels 53°
Evening58°feels 57°
Overnight49°feels 47°
61 °
Markham, Tuesday, 20 October
Clear. High 61°, low 42°.
Pressure30.42 inHg
Wind7.3 mph NW
Humidity44%
Visibility—
Dew point32°
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 Markham, 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.