10-day forecast for Mattoon, IL: 38° to 73°, with precipitation expected on 0 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Saturday, October 24
57°
Worst day: Saturday, October 17
Tap any day below to see morning, afternoon, evening and overnight.
Sun, 1862° / 38°0
Morning42°feels 37°
Afternoon61°feels 58°
Evening50°feels 48°
Overnight41°feels 38°
62 °
Mattoon, Sunday, 18 October
Clear. High 62°, low 38°.
Pressure30.50 inHg
Wind8.9 mph S
Humidity46%
Visibility6.2 mi
Dew point38°
Mon, 1966° / 42°0
Morning44°feels 44°
Afternoon66°feels 64°
Evening54°feels 53°
Overnight45°feels 43°
66 °
Mattoon, Monday, 19 October
Clear. High 66°, low 42°.
Pressure30.39 inHg
Wind0.7 mph NE
Humidity44%
Visibility6.2 mi
Dew point41°
Tue, 2069° / 43°0
Morning45°feels 43°
Afternoon68°feels 67°
Evening56°feels 54°
Overnight47°feels 47°
69 °
Mattoon, Tuesday, 20 October
Clear. High 69°, low 43°.
Pressure30.39 inHg
Wind2.6 mph E
Humidity44%
Visibility6.2 mi
Dew point44°
Wed, 2170° / 46°0
Morning51°feels 49°
Afternoon69°feels 68°
Evening59°feels 58°
Overnight49°feels 48°
70 °
Mattoon, Wednesday, 21 October
Clear. High 70°, low 46°.
Pressure30.30 inHg
Wind1.8 mph S
Humidity48%
Visibility6.2 mi
Dew point46°
Thu, 2270° / 48°0
Morning54°feels 54°
Afternoon68°feels 67°
Evening60°feels 59°
Overnight55°feels 54°
70 °
Mattoon, Thursday, 22 October
Clear. High 70°, low 48°.
Pressure30.24 inHg
Wind7.5 mph NE
Humidity44%
Visibility—
Dew point44°
Fri, 2371° / 50°0
Morning55°feels 53°
Afternoon67°feels 66°
Evening61°feels 58°
Overnight57°feels 54°
71 °
Mattoon, Friday, 23 October
Clear. High 71°, low 50°.
Pressure30.30 inHg
Wind8.1 mph E
Humidity42%
Visibility—
Dew point42°
Sat, 2473° / 53°0
Morning58°feels 56°
Afternoon70°feels 68°
Evening63°feels 61°
Overnight60°feels 57°
73 °
Mattoon, Saturday, 24 October
Overcast. High 73°, low 53°.
Pressure30.27 inHg
Wind11.8 mph S
Humidity28%
Visibility—
Dew point34°
Sun, 2567° / 50°0
Morning59°feels 57°
Afternoon64°feels 63°
Evening52°feels 50°
Overnight51°feels 49°
67 °
Mattoon, Sunday, 25 October
Overcast. High 67°, low 50°.
Pressure30.36 inHg
Wind13.1 mph NW
Humidity43%
Visibility—
Dew point42°
Mon, 2660° / 41°0
Morning46°feels 42°
Afternoon56°feels 53°
Evening49°feels 47°
Overnight45°feels 42°
60 °
Mattoon, Monday, 26 October
Overcast. High 60°, low 41°.
Pressure30.39 inHg
Wind7.6 mph N
Humidity30%
Visibility—
Dew point24°
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 Mattoon, 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.