10-day forecast for Harmony, IL: 35° to 69°, with precipitation expected on 1 day. The table below breaks each day into morning, afternoon, evening and overnight.
69°
Best day: Friday, October 23
64° · 0.56 in
Worst day: Thursday, October 15
Tap any day below to see morning, afternoon, evening and overnight.
Fri, 1655° / 44°0.02
Morning50°feels 44°
Afternoon52°feels 50°
Evening47°feels 42°
Overnight51°feels 49°
55 °
Harmony, Friday, 16 October
Light rain. High 55°, low 44°.
Pressure30.09 inHg
Wind17.7 mph NW
Humidity73%
Visibility3.9 mi
Dew point43°
Sat, 1756° / 35°0
Morning37°feels 33°
Afternoon55°feels 52°
Evening47°feels 43°
Overnight40°feels 35°
56 °
Harmony, Saturday, 17 October
Clear. High 56°, low 35°.
Pressure30.53 inHg
Wind7.3 mph SW
Humidity45%
Visibility6.2 mi
Dew point31°
Sun, 1861° / 42°0
Morning43°feels 37°
Afternoon60°feels 58°
Evening52°feels 50°
Overnight43°feels 38°
61 °
Harmony, Sunday, 18 October
Clear. High 61°, low 42°.
Pressure30.42 inHg
Wind15.4 mph SW
Humidity45%
Visibility6.2 mi
Dew point37°
Mon, 1962° / 42°0
Morning46°feels 42°
Afternoon60°feels 59°
Evening55°feels 53°
Overnight46°feels 42°
62 °
Harmony, Monday, 19 October
Overcast. High 62°, low 42°.
Pressure30.33 inHg
Wind9.3 mph S
Humidity49%
Visibility—
Dew point40°
Tue, 2066° / 49°0.02
Morning54°feels 53°
Afternoon65°feels 63°
Evening55°feels 54°
Overnight51°feels 50°
66 °
Harmony, Tuesday, 20 October
Light rain. High 66°, low 49°.
Pressure30.30 inHg
Wind5.5 mph S
Humidity48%
Visibility—
Dew point44°
Wed, 2166° / 48°0
Morning53°feels 51°
Afternoon64°feels 63°
Evening57°feels 56°
Overnight53°feels 51°
66 °
Harmony, Wednesday, 21 October
Clear. High 66°, low 48°.
Pressure30.36 inHg
Wind7.1 mph SE
Humidity50%
Visibility—
Dew point44°
Thu, 2268° / 51°0
Morning56°feels 54°
Afternoon66°feels 65°
Evening60°feels 59°
Overnight58°feels 57°
68 °
Harmony, Thursday, 22 October
Mostly clear. High 68°, low 51°.
Pressure30.21 inHg
Wind10.8 mph S
Humidity50%
Visibility—
Dew point46°
Fri, 2369° / 54°0
Morning58°feels 56°
Afternoon67°feels 65°
Evening60°feels 59°
Overnight59°feels 58°
69 °
Harmony, Friday, 23 October
Overcast. High 69°, low 54°.
Pressure30.24 inHg
Wind13.8 mph SE
Humidity47%
Visibility—
Dew point45°
Sat, 2468° / 55°0.02
Morning58°feels 56°
Afternoon64°feels 62°
Evening61°feels 60°
Overnight57°feels 57°
68 °
Harmony, Saturday, 24 October
Light rain. High 68°, low 55°.
Pressure30.15 inHg
Wind16.8 mph SE
Humidity59%
Visibility—
Dew point48°
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.