10-day forecast for Harmony, IL: 35° to 66°, with precipitation expected on 2 days. The table below breaks each day into morning, afternoon, evening and overnight.
66°
Best day: Friday, October 23
63° · 0.87 in
Worst day: Thursday, October 15
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1655° / 43°0.02
Morning51°feels 49°
Afternoon51°feels 49°
Evening47°feels 41°
Overnight51°feels 49°
55 °
Harmony, Friday, 16 October
Light rain. High 55°, low 43°.
Pressure30.06 inHg
Wind18.1 mph NW
Humidity71%
Visibility6.2 mi
Dew point43°
Sat, 1755° / 35°0
Morning37°feels 33°
Afternoon54°feels 51°
Evening46°feels 42°
Overnight40°feels 34°
55 °
Harmony, Saturday, 17 October
Clear. High 55°, low 35°.
Pressure30.53 inHg
Wind6.6 mph SW
Humidity47%
Visibility6.2 mi
Dew point32°
Sun, 1860° / 41°0
Morning43°feels 37°
Afternoon59°feels 57°
Evening51°feels 49°
Overnight43°feels 37°
60 °
Harmony, Sunday, 18 October
Clear. High 60°, low 41°.
Pressure30.45 inHg
Wind14.5 mph SW
Humidity45%
Visibility6.2 mi
Dew point36°
Mon, 1963° / 41°0
Morning47°feels 44°
Afternoon60°feels 58°
Evening51°feels 49°
Overnight45°feels 41°
63 °
Harmony, Monday, 19 October
Overcast. High 63°, low 41°.
Pressure30.39 inHg
Wind8.3 mph S
Humidity47%
Visibility—
Dew point38°
Tue, 2065° / 44°0
Morning50°feels 50°
Afternoon63°feels 62°
Evening55°feels 54°
Overnight50°feels 49°
65 °
Harmony, Tuesday, 20 October
Mostly clear. High 65°, low 44°.
Pressure30.33 inHg
Wind7.2 mph E
Humidity44%
Visibility—
Dew point40°
Wed, 2165° / 48°0
Morning53°feels 51°
Afternoon63°feels 62°
Evening55°feels 53°
Overnight51°feels 49°
65 °
Harmony, Wednesday, 21 October
Clear. High 65°, low 48°.
Pressure30.36 inHg
Wind6.5 mph SE
Humidity48%
Visibility—
Dew point42°
Thu, 2265° / 49°0
Morning53°feels 51°
Afternoon63°feels 61°
Evening56°feels 55°
Overnight55°feels 53°
65 °
Harmony, Thursday, 22 October
Overcast. High 65°, low 49°.
Pressure30.27 inHg
Wind9 mph S
Humidity51%
Visibility—
Dew point43°
Fri, 2366° / 52°0
Morning56°feels 54°
Afternoon64°feels 62°
Evening60°feels 58°
Overnight58°feels 57°
66 °
Harmony, Friday, 23 October
Overcast. High 66°, low 52°.
Pressure30.15 inHg
Wind14 mph SE
Humidity49%
Visibility—
Dew point44°
Sat, 2458° / 53°0.3
Morning56°feels 55°
Afternoon54°feels 53°
Evening53°feels 53°
Overnight54°feels 53°
58 °
Harmony, Saturday, 24 October
Light rain. High 58°, low 53°.
Pressure30.12 inHg
Wind14.8 mph S
Humidity95%
Visibility—
Dew point53°
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 Harmony, 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.