10-day forecast for Santiago, IA: 61° to 103°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
103°
Best day: Tuesday, August 11
71° · 0.85 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1089° / 71°0.01
Morning74°feels 75°
Afternoon88°feels 91°
Evening87°feels 93°
Overnight79°feels 79°
89 °
Santiago, Monday, 10 August
Light rain. High 89°, low 71°.
Pressure29.85 inHg
Wind9.8 mph E
Humidity60%
Visibility6.2 mi
Dew point69°
Tue, 11103° / 70°0
Morning74°feels 74°
Afternoon101°feels 101°
Evening83°feels 87°
Overnight71°feels 71°
103 °
Santiago, Tuesday, 11 August
Light rain. High 103°, low 70°.
Pressure29.71 inHg
Wind16.5 mph SW
Humidity34%
Visibility6.2 mi
Dew point62°
Wed, 1291° / 69°0.03
Morning75°feels 76°
Afternoon89°feels 93°
Evening76°feels 77°
Overnight70°feels 71°
91 °
Santiago, Wednesday, 12 August
Light rain. High 91°, low 69°.
Pressure29.85 inHg
Wind11.8 mph E
Humidity56%
Visibility6.2 mi
Dew point70°
Thu, 1371° / 66°0.85
Morning69°feels 70°
Afternoon69°feels 70°
Evening67°feels 67°
Overnight69°feels 70°
71 °
Santiago, Thursday, 13 August
Rain. High 71°, low 66°.
Pressure29.91 inHg
Wind14.9 mph E
Humidity98%
Visibility—
Dew point68°
Fri, 1472° / 64°0.4
Morning65°feels 66°
Afternoon69°feels 70°
Evening69°feels 70°
Overnight67°feels 67°
72 °
Santiago, Friday, 14 August
Rain. High 72°, low 64°.
Pressure30.09 inHg
Wind16.8 mph E
Humidity91%
Visibility—
Dew point66°
Sat, 1576° / 65°0.36
Morning67°feels 67°
Afternoon70°feels 71°
Evening75°feels 76°
Overnight69°feels 70°
76 °
Santiago, Saturday, 15 August
Rain. High 76°, low 65°.
Pressure30.06 inHg
Wind13.1 mph E
Humidity95%
Visibility—
Dew point67°
Sun, 1678° / 64°0
Morning68°feels 69°
Afternoon77°feels 78°
Evening73°feels 73°
Overnight65°feels 65°
78 °
Santiago, Sunday, 16 August
Overcast. High 78°, low 64°.
Pressure30.12 inHg
Wind13.2 mph N
Humidity64%
Visibility—
Dew point63°
Mon, 1778° / 61°0
Morning66°feels 66°
Afternoon77°feels 77°
Evening72°feels 72°
Overnight69°feels 69°
78 °
Santiago, Monday, 17 August
Overcast. High 78°, low 61°.
Pressure30.09 inHg
Wind6.5 mph S
Humidity59%
Visibility—
Dew point60°
Tue, 1886° / 62°0.09
Morning67°feels 68°
Afternoon81°feels 84°
Evening82°feels 87°
Overnight72°feels 73°
86 °
Santiago, Tuesday, 18 August
Light rain. High 86°, low 62°.
Pressure29.80 inHg
Wind8.6 mph S
Humidity66%
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 Santiago, 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.