10-day forecast for Marion, IA: 59° to 90°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
90°
Best day: Sunday, August 9
66° · 0.09 in
Worst day: Saturday, August 15
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0990° / 66°0
Morning71°feels 72°
Afternoon87°feels 92°
Evening81°feels 87°
Overnight68°feels 68°
90 °
Marion, Sunday, 9 August
Overcast. High 90°, low 66°.
Pressure29.85 inHg
Wind3.8 mph SW
Humidity68%
Visibility6.2 mi
Dew point72°
Mon, 1088° / 71°0
Morning74°feels 75°
Afternoon87°feels 92°
Evening80°feels 80°
Overnight74°feels 76°
88 °
Marion, Monday, 10 August
Overcast. High 88°, low 71°.
Pressure29.85 inHg
Wind4.8 mph E
Humidity65%
Visibility6.2 mi
Dew point71°
Tue, 1186° / 71°0
Morning73°feels 74°
Afternoon86°feels 93°
Evening78°feels 80°
Overnight71°feels 72°
86 °
Marion, Tuesday, 11 August
Overcast. High 86°, low 71°.
Pressure29.77 inHg
Wind6.6 mph NW
Humidity63%
Visibility6.2 mi
Dew point72°
Wed, 1282° / 68°0
Morning72°feels 73°
Afternoon80°feels 83°
Evening72°feels 72°
Overnight70°feels 72°
82 °
Marion, Wednesday, 12 August
Overcast. High 82°, low 68°.
Pressure29.91 inHg
Wind4.9 mph N
Humidity76%
Visibility6.2 mi
Dew point69°
Thu, 1370° / 61°0.09
Morning63°feels 63°
Afternoon68°feels 69°
Evening65°feels 66°
Overnight64°feels 64°
70 °
Marion, Thursday, 13 August
Light rain. High 70°, low 61°.
Pressure29.97 inHg
Wind11.2 mph NE
Humidity87%
Visibility—
Dew point64°
Fri, 1477° / 60°0
Morning65°feels 65°
Afternoon75°feels 75°
Evening70°feels 71°
Overnight64°feels 64°
77 °
Marion, Friday, 14 August
Overcast. High 77°, low 60°.
Pressure30.12 inHg
Wind8.7 mph E
Humidity56%
Visibility—
Dew point57°
Sat, 1566° / 59°0.09
Morning64°feels 64°
Afternoon60°feels 60°
Evening59°feels 59°
Overnight61°feels 61°
66 °
Marion, Saturday, 15 August
Light rain. High 66°, low 59°.
Pressure30.27 inHg
Wind11.2 mph E
Humidity89%
Visibility—
Dew point58°
Sun, 1671° / 59°0
Morning61°feels 61°
Afternoon65°feels 65°
Evening68°feels 68°
Overnight64°feels 64°
71 °
Marion, Sunday, 16 August
Overcast. High 71°, low 59°.
Pressure30.15 inHg
Wind6.9 mph E
Humidity82%
Visibility—
Dew point58°
Mon, 1783° / 63°0
Morning68°feels 70°
Afternoon81°feels 83°
Evening77°feels 78°
Overnight69°feels 69°
83 °
Marion, Monday, 17 August
Partly cloudy. High 83°, low 63°.
Pressure30.03 inHg
Wind7.3 mph SE
Humidity64%
Visibility—
Dew point65°
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 Marion, IA 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.