10-day forecast for Guernsey, IA: 61° to 93°, with precipitation expected on 4 days. The table below breaks each day into morning, afternoon, evening and overnight.
93°
Best day: Sunday, August 9
68° · 1.66 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1087° / 72°0.01
Morning73°feels 74°
Afternoon87°feels 93°
Evening79°feels 80°
Overnight76°feels 78°
87 °
Guernsey, Monday, 10 August
Light rain. High 87°, low 72°.
Pressure29.85 inHg
Wind8.4 mph E
Humidity75%
Visibility6.2 mi
Dew point73°
Tue, 1191° / 72°0.01
Morning75°feels 75°
Afternoon89°feels 94°
Evening82°feels 86°
Overnight72°feels 73°
91 °
Guernsey, Tuesday, 11 August
Light rain. High 91°, low 72°.
Pressure29.77 inHg
Wind10.8 mph SW
Humidity53%
Visibility6.2 mi
Dew point68°
Wed, 1286° / 69°0.41
Morning70°feels 71°
Afternoon83°feels 87°
Evening75°feels 76°
Overnight73°feels 75°
86 °
Guernsey, Wednesday, 12 August
Rain. High 86°, low 69°.
Pressure29.85 inHg
Wind5.3 mph NE
Humidity67%
Visibility6.2 mi
Dew point70°
Thu, 1376° / 62°0.12
Morning66°feels 65°
Afternoon74°feels 74°
Evening64°feels 64°
Overnight64°feels 65°
76 °
Guernsey, Thursday, 13 August
Light rain. High 76°, low 62°.
Pressure29.97 inHg
Wind13.4 mph NE
Humidity63%
Visibility—
Dew point60°
Fri, 1468° / 61°1.66
Morning62°feels 63°
Afternoon65°feels 66°
Evening67°feels 67°
Overnight65°feels 65°
68 °
Guernsey, Friday, 14 August
Heavy rain. High 68°, low 61°.
Pressure30.15 inHg
Wind11.9 mph E
Humidity89%
Visibility—
Dew point62°
Sat, 1569° / 61°0.05
Morning63°feels 63°
Afternoon69°feels 69°
Evening67°feels 68°
Overnight65°feels 66°
69 °
Guernsey, Saturday, 15 August
Light rain. High 69°, low 61°.
Pressure30.15 inHg
Wind11.9 mph SE
Humidity84%
Visibility—
Dew point63°
Sun, 1680° / 67°0
Morning71°feels 72°
Afternoon78°feels 79°
Evening75°feels 76°
Overnight69°feels 70°
80 °
Guernsey, Sunday, 16 August
Overcast. High 80°, low 67°.
Pressure30.09 inHg
Wind8.4 mph N
Humidity70%
Visibility—
Dew point66°
Mon, 1783° / 65°0
Morning70°feels 71°
Afternoon81°feels 83°
Evening78°feels 78°
Overnight69°feels 70°
83 °
Guernsey, Monday, 17 August
Overcast. High 83°, low 65°.
Pressure30.09 inHg
Wind5.8 mph E
Humidity66%
Visibility—
Dew point67°
Tue, 1886° / 66°0
Morning71°feels 72°
Afternoon82°feels 86°
Evening80°feels 85°
Overnight74°feels 75°
86 °
Guernsey, Tuesday, 18 August
Overcast. High 86°, low 66°.
Pressure29.94 inHg
Wind13.5 mph SE
Humidity66%
Visibility—
Dew point67°
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 Guernsey, 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.