10-day forecast for Coster, IA: 55° to 87°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
87°
Best day: Tuesday, August 11
76° · 0.29 in
Worst day: Thursday, August 13
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 0985° / 66°0.25
Morning67°feels 68°
Afternoon83°feels 88°
Evening80°feels 80°
Overnight67°feels 67°
85 °
Coster, Sunday, 9 August
Rain. High 85°, low 66°.
Pressure29.80 inHg
Wind9.1 mph SE
Humidity75%
Visibility6.2 mi
Dew point72°
Mon, 1084° / 71°0
Morning74°feels 76°
Afternoon81°feels 86°
Evening77°feels 79°
Overnight73°feels 75°
84 °
Coster, Monday, 10 August
Overcast. High 84°, low 71°.
Pressure29.83 inHg
Wind8.1 mph E
Humidity81%
Visibility6.2 mi
Dew point73°
Tue, 1187° / 69°0
Morning73°feels 74°
Afternoon86°feels 93°
Evening79°feels 79°
Overnight70°feels 71°
87 °
Coster, Tuesday, 11 August
Partly cloudy. High 87°, low 69°.
Pressure29.77 inHg
Wind2.5 mph E
Humidity67%
Visibility6.2 mi
Dew point72°
Wed, 1285° / 70°0
Morning72°feels 73°
Afternoon84°feels 89°
Evening79°feels 83°
Overnight71°feels 72°
85 °
Coster, Wednesday, 12 August
Partly cloudy. High 85°, low 70°.
Pressure29.85 inHg
Wind5.9 mph SE
Humidity66%
Visibility6.2 mi
Dew point69°
Thu, 1376° / 62°0.29
Morning67°feels 67°
Afternoon75°feels 75°
Evening68°feels 68°
Overnight62°feels 61°
76 °
Coster, Thursday, 13 August
Rain. High 76°, low 62°.
Pressure29.97 inHg
Wind11.6 mph NE
Humidity58%
Visibility—
Dew point59°
Fri, 1477° / 55°0
Morning61°feels 60°
Afternoon75°feels 74°
Evening70°feels 70°
Overnight61°feels 60°
77 °
Coster, Friday, 14 August
Clear. High 77°, low 55°.
Pressure30.21 inHg
Wind7.5 mph SE
Humidity51%
Visibility—
Dew point53°
Sat, 1577° / 57°0
Morning62°feels 62°
Afternoon75°feels 75°
Evening71°feels 72°
Overnight64°feels 64°
77 °
Coster, Saturday, 15 August
Overcast. High 77°, low 57°.
Pressure30.24 inHg
Wind12.3 mph S
Humidity59%
Visibility—
Dew point58°
Sun, 1680° / 65°0
Morning68°feels 68°
Afternoon76°feels 76°
Evening75°feels 77°
Overnight70°feels 71°
80 °
Coster, Sunday, 16 August
Overcast. High 80°, low 65°.
Pressure30.09 inHg
Wind10.9 mph S
Humidity72%
Visibility—
Dew point65°
Mon, 1782° / 70°0.03
Morning73°feels 75°
Afternoon81°feels 85°
Evening78°feels 78°
Overnight72°feels 73°
82 °
Coster, Monday, 17 August
Light rain. High 82°, low 70°.
Pressure29.97 inHg
Wind10.2 mph NW
Humidity75%
Visibility—
Dew point71°
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 Coster, 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.