10-day forecast for Marshalltown, IA: 58° to 94°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
94°
Best day: Sunday, August 9
67° · 0.13 in
Worst day: Saturday, August 15
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1091° / 73°0
Morning74°feels 75°
Afternoon89°feels 94°
Evening78°feels 79°
Overnight76°feels 77°
91 °
Marshalltown, Monday, 10 August
Overcast. High 91°, low 73°.
Pressure29.85 inHg
Wind5.7 mph SE
Humidity54%
Visibility6.2 mi
Dew point67°
Tue, 1190° / 71°0
Morning74°feels 74°
Afternoon89°feels 94°
Evening79°feels 80°
Overnight72°feels 73°
90 °
Marshalltown, Tuesday, 11 August
Partly cloudy. High 90°, low 71°.
Pressure29.77 inHg
Wind4.2 mph NW
Humidity50%
Visibility6.2 mi
Dew point68°
Wed, 1285° / 68°0
Morning71°feels 72°
Afternoon84°feels 86°
Evening73°feels 73°
Overnight71°feels 72°
85 °
Marshalltown, Wednesday, 12 August
Overcast. High 85°, low 68°.
Pressure29.88 inHg
Wind12.9 mph NE
Humidity63%
Visibility6.2 mi
Dew point66°
Thu, 1369° / 62°0.04
Morning64°feels 64°
Afternoon67°feels 67°
Evening65°feels 66°
Overnight64°feels 64°
69 °
Marshalltown, Thursday, 13 August
Light rain. High 69°, low 62°.
Pressure30.00 inHg
Wind10.9 mph NE
Humidity74%
Visibility—
Dew point58°
Fri, 1479° / 60°0
Morning65°feels 65°
Afternoon78°feels 78°
Evening72°feels 72°
Overnight67°feels 67°
79 °
Marshalltown, Friday, 14 August
Overcast. High 79°, low 60°.
Pressure30.09 inHg
Wind10 mph E
Humidity47%
Visibility—
Dew point54°
Sat, 1567° / 58°0.13
Morning65°feels 65°
Afternoon60°feels 60°
Evening59°feels 59°
Overnight60°feels 60°
67 °
Marshalltown, Saturday, 15 August
Light rain. High 67°, low 58°.
Pressure30.24 inHg
Wind13 mph SE
Humidity95%
Visibility—
Dew point59°
Sun, 1676° / 60°0.01
Morning63°feels 63°
Afternoon68°feels 69°
Evening70°feels 71°
Overnight66°feels 67°
76 °
Marshalltown, Sunday, 16 August
Light rain. High 76°, low 60°.
Pressure30.15 inHg
Wind5.4 mph NE
Humidity86%
Visibility—
Dew point63°
Mon, 1787° / 65°0
Morning70°feels 72°
Afternoon84°feels 87°
Evening81°feels 84°
Overnight71°feels 72°
87 °
Marshalltown, Monday, 17 August
Clear. High 87°, low 65°.
Pressure30.03 inHg
Wind7.2 mph S
Humidity57%
Visibility—
Dew point65°
Tue, 1894° / 68°0.01
Morning74°feels 76°
Afternoon88°feels 93°
Evening86°feels 92°
Overnight78°feels 81°
94 °
Marshalltown, Tuesday, 18 August
Light rain. High 94°, low 68°.
Pressure29.94 inHg
Wind14.3 mph S
Humidity53%
Visibility—
Dew point66°
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 Marshalltown, 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.