10-day forecast for Fairmont, IL: 59° to 91°, with precipitation expected on 8 days. The table below breaks each day into morning, afternoon, evening and overnight.
78°
Best day: Tuesday, August 18
81° · 0.2 in
Worst day: Tuesday, August 11
Tap any day below to see morning, afternoon, evening and overnight.
Mon, 1091° / 72°0.13
Morning76°feels 78°
Afternoon90°feels 103°
Evening77°feels 78°
Overnight77°feels 79°
91 °
Fairmont, Monday, 10 August
Light rain. High 91°, low 72°.
Pressure29.88 inHg
Wind6.5 mph NW
Humidity73%
Visibility6.2 mi
Dew point75°
Tue, 1181° / 70°0.2
Morning74°feels 75°
Afternoon77°feels 79°
Evening76°feels 78°
Overnight70°feels 72°
81 °
Fairmont, Tuesday, 11 August
Rain. High 81°, low 70°.
Pressure29.85 inHg
Wind5.3 mph W
Humidity80%
Visibility6.2 mi
Dew point72°
Wed, 1283° / 70°0.04
Morning74°feels 75°
Afternoon82°feels 86°
Evening73°feels 74°
Overnight71°feels 73°
83 °
Fairmont, Wednesday, 12 August
Light rain. High 83°, low 70°.
Pressure29.85 inHg
Wind5.3 mph W
Humidity75%
Visibility6.2 mi
Dew point71°
Thu, 1376° / 62°0.1
Morning69°feels 70°
Afternoon75°feels 75°
Evening65°feels 65°
Overnight66°feels 66°
76 °
Fairmont, Thursday, 13 August
Light rain. High 76°, low 62°.
Pressure30.00 inHg
Wind8.8 mph E
Humidity58%
Visibility—
Dew point59°
Fri, 1475° / 59°0.04
Morning64°feels 64°
Afternoon73°feels 72°
Evening65°feels 65°
Overnight63°feels 63°
75 °
Fairmont, Friday, 14 August
Light rain. High 75°, low 59°.
Pressure30.15 inHg
Wind8.7 mph NE
Humidity51%
Visibility—
Dew point53°
Sat, 1576° / 61°0.06
Morning64°feels 64°
Afternoon73°feels 73°
Evening70°feels 70°
Overnight66°feels 66°
76 °
Fairmont, Saturday, 15 August
Light rain. High 76°, low 61°.
Pressure30.24 inHg
Wind8.9 mph SE
Humidity60%
Visibility—
Dew point57°
Sun, 1678° / 62°0.04
Morning66°feels 67°
Afternoon76°feels 76°
Evening72°feels 73°
Overnight69°feels 69°
78 °
Fairmont, Sunday, 16 August
Light rain. High 78°, low 62°.
Pressure30.09 inHg
Wind6.4 mph SE
Humidity71%
Visibility—
Dew point64°
Mon, 1780° / 65°0.02
Morning70°feels 71°
Afternoon79°feels 79°
Evening72°feels 73°
Overnight67°feels 67°
80 °
Fairmont, Monday, 17 August
Light rain. High 80°, low 65°.
Pressure30.06 inHg
Wind7.1 mph W
Humidity65%
Visibility—
Dew point65°
Tue, 1878° / 65°0
Morning67°feels 68°
Afternoon74°feels 75°
Evening75°feels 76°
Overnight69°feels 70°
78 °
Fairmont, Tuesday, 18 August
Partly cloudy. High 78°, low 65°.
Pressure30.03 inHg
Wind5.3 mph E
Humidity85%
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 Fairmont, IL 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.