10-day forecast for Fairfax, IA: 61° to 92°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
90°
Best day: Tuesday, August 11
74° · 0.37 in
Worst day: Friday, August 14
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1088° / 72°0.01
Morning75°feels 76°
Afternoon86°feels 95°
Evening79°feels 79°
Overnight76°feels 77°
88 °
Fairfax, Monday, 10 August
Light rain. High 88°, low 72°.
Pressure29.88 inHg
Wind9.3 mph E
Humidity77%
Visibility6.2 mi
Dew point74°
Tue, 1190° / 71°0.01
Morning74°feels 75°
Afternoon88°feels 94°
Evening81°feels 85°
Overnight71°feels 72°
90 °
Fairfax, Tuesday, 11 August
Light rain. High 90°, low 71°.
Pressure29.77 inHg
Wind9.9 mph SW
Humidity56%
Visibility6.2 mi
Dew point69°
Wed, 1283° / 68°0.03
Morning72°feels 74°
Afternoon84°feels 89°
Evening73°feels 74°
Overnight73°feels 75°
83 °
Fairfax, Wednesday, 12 August
Light rain. High 83°, low 68°.
Pressure29.85 inHg
Wind9.3 mph NE
Humidity71%
Visibility6.2 mi
Dew point71°
Thu, 1374° / 62°0.27
Morning65°feels 65°
Afternoon73°feels 73°
Evening63°feels 64°
Overnight65°feels 65°
74 °
Fairfax, Thursday, 13 August
Rain. High 74°, low 62°.
Pressure29.97 inHg
Wind13.4 mph NE
Humidity68%
Visibility—
Dew point61°
Fri, 1474° / 61°0.37
Morning65°feels 65°
Afternoon73°feels 73°
Evening68°feels 68°
Overnight66°feels 66°
74 °
Fairfax, Friday, 14 August
Rain. High 74°, low 61°.
Pressure30.15 inHg
Wind13.6 mph E
Humidity59%
Visibility—
Dew point57°
Sat, 1571° / 61°0.06
Morning63°feels 63°
Afternoon67°feels 68°
Evening68°feels 69°
Overnight66°feels 66°
71 °
Fairfax, Saturday, 15 August
Light rain. High 71°, low 61°.
Pressure30.18 inHg
Wind13 mph SE
Humidity76%
Visibility—
Dew point59°
Sun, 1679° / 67°0.01
Morning71°feels 72°
Afternoon78°feels 79°
Evening75°feels 76°
Overnight69°feels 69°
79 °
Fairfax, Sunday, 16 August
Light rain. High 79°, low 67°.
Pressure30.09 inHg
Wind8 mph N
Humidity70%
Visibility—
Dew point67°
Mon, 1783° / 65°0
Morning69°feels 71°
Afternoon80°feels 82°
Evening76°feels 77°
Overnight68°feels 69°
83 °
Fairfax, Monday, 17 August
Overcast. High 83°, low 65°.
Pressure30.09 inHg
Wind7.2 mph E
Humidity60%
Visibility—
Dew point63°
Tue, 1885° / 64°0
Morning70°feels 72°
Afternoon83°feels 86°
Evening80°feels 83°
Overnight73°feels 74°
85 °
Fairfax, Tuesday, 18 August
Overcast. High 85°, low 64°.
Pressure29.94 inHg
Wind15.1 mph S
Humidity62%
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 Fairfax, 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.