10-day forecast for West Saint Marys, IA: 66° to 102°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
102°
Best day: Saturday, August 15
79° · 0.26 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1092° / 72°0
Morning74°feels 74°
Afternoon90°feels 90°
Evening89°feels 90°
Overnight77°feels 78°
92 °
West Saint Marys, Monday, 10 August
Light rain. High 92°, low 72°.
Pressure29.85 inHg
Wind7.5 mph E
Humidity47%
Visibility6.2 mi
Dew point65°
Tue, 11102° / 77°0.02
Morning82°feels 83°
Afternoon101°feels 102°
Evening85°feels 88°
Overnight80°feels 80°
102 °
West Saint Marys, Tuesday, 11 August
Light rain. High 102°, low 77°.
Pressure29.71 inHg
Wind13.8 mph W
Humidity30%
Visibility6.2 mi
Dew point61°
Wed, 1289° / 70°0.03
Morning74°feels 75°
Afternoon87°feels 89°
Evening77°feels 78°
Overnight73°feels 74°
89 °
West Saint Marys, Wednesday, 12 August
Light rain. High 89°, low 70°.
Pressure29.88 inHg
Wind12.1 mph E
Humidity68%
Visibility6.2 mi
Dew point67°
Thu, 1379° / 69°0.26
Morning69°feels 71°
Afternoon73°feels 74°
Evening73°feels 75°
Overnight69°feels 70°
79 °
West Saint Marys, Thursday, 13 August
Rain. High 79°, low 69°.
Pressure29.94 inHg
Wind3.7 mph N
Humidity95%
Visibility6.2 mi
Dew point71°
Fri, 1499° / 70°0.09
Morning76°feels 78°
Afternoon90°feels 94°
Evening87°feels 91°
Overnight80°feels 84°
99 °
West Saint Marys, Friday, 14 August
Light rain. High 99°, low 70°.
Pressure29.85 inHg
Wind14.6 mph E
Humidity49%
Visibility—
Dew point66°
Sat, 15102° / 73°0.01
Morning80°feels 82°
Afternoon96°feels 100°
Evening88°feels 91°
Overnight74°feels 75°
102 °
West Saint Marys, Saturday, 15 August
Light rain. High 102°, low 73°.
Pressure29.85 inHg
Wind18 mph NW
Humidity36%
Visibility—
Dew point63°
Sun, 1690° / 66°0
Morning72°feels 73°
Afternoon85°feels 87°
Evening80°feels 82°
Overnight71°feels 71°
90 °
West Saint Marys, Sunday, 16 August
Overcast. High 90°, low 66°.
Pressure30.03 inHg
Wind13.1 mph NE
Humidity48%
Visibility—
Dew point61°
Mon, 1793° / 66°0.13
Morning70°feels 71°
Afternoon82°feels 82°
Evening89°feels 92°
Overnight76°feels 76°
93 °
West Saint Marys, Monday, 17 August
Light rain. High 93°, low 66°.
Pressure29.85 inHg
Wind9.8 mph SE
Humidity70%
Visibility—
Dew point67°
Tue, 1899° / 71°0
Morning78°feels 78°
Afternoon96°feels 93°
Evening88°feels 86°
Overnight74°feels 74°
99 °
West Saint Marys, Tuesday, 18 August
Overcast. High 99°, low 71°.
Pressure29.88 inHg
Wind13.9 mph NW
Humidity21%
Visibility—
Dew point47°
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 West Saint Marys, 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.