Harmony, IL 14 Day Weather - WeatherWorld.com
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Harmony, IL Weather Forecast


Harmony, IL Weather Forecast Dated: 1226 AM Fri Sep 04 2026
Expect a hot stretch with a mix of sun and clouds and mostly dry weather over the coming period. comfortable humidity and no major pressure swings will dominate.
Friday, September 4, 2026
Mid-Morning
85°F 29°C
Sunny
Mid-Afternoon
102°F 39°C
Sunny
Early-Evening
96°F 36°C
Sunny
Scorching hot near 102°F 39°C, sunny throughout the day, with lower humidity and steady pressure. Winds turning from the WSW to the SSW at 10 mph 16 km/h.
Saturday, September 5, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
98°F 37°C
Sunny
Early-Evening
89°F 32°C
Nearby Thunderstorms
Hot and sweltering around 98°F 37°C (heat index 102°F 39°C), locally heavy thunderstorms at times, with lower humidity and steady pressure. Winds switching from the WNW to the E at 10 mph 16 km/h.
Sunday, September 6, 2026
Mid-Morning
71°F 21°C
Light Showers
Mid-Afternoon
87°F 31°C
Overcast
Early-Evening
81°F 27°C
Overcast
Quite warm around 87°F 31°C, morning showers, giving way to clearing skies, with lower humidity and steady pressure. Winds ENE at 11 mph 18 km/h. Gusts up to 21 mph 33 km/h.
Monday, September 7, 2026
Mid-Morning
70°F 21°C
Partly Cloudy
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
79°F 26°C
Sunny
Warm temperatures up to 86°F 30°C, cloudy in the morning, sunny in the afternoon, and partly cloudy this evening, with lower humidity and steady pressure. Winds swinging from the SE to the E at 13 mph 20 km/h. Gusts up to 21 mph 33 km/h.
Tuesday, September 8, 2026
Mid-Morning
76°F 24°C
Cloudy
Mid-Afternoon
101°F 38°C
Sunny
Early-Evening
98°F 37°C
Sunny
Scorching hot near 101°F 38°C, overcast in the morning, becoming sunny through the afternoon and evening, with lower humidity and barometric pressure falling. Winds blowing from the SSW at 11 mph 18 km/h. Gusts up to 24 mph 39 km/h.
Wednesday, September 9, 2026
Mid-Morning
88°F 31°C
Sunny
Mid-Afternoon
101°F 38°C
Partly Cloudy
Early-Evening
91°F 33°C
Sunny
Sweltering heat reaching 101°F 38°C, sunny through the afternoon, turning partly cloudy this evening, with increasing humidity and steady pressure. Winds turning from the WSW to the ENE at 10 mph 15 km/h.
Thursday, September 10, 2026
Mid-Morning
82°F 28°C
Partly Cloudy
Mid-Afternoon
94°F 35°C
Sunny
Early-Evening
86°F 31°C
Cloudy
Sizzling hot near 94°F 35°C with a heat index reaching 97°F 36°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds picking up from NE at 3 mph 5 km/h to ESE at 12 mph 19 km/h. Gusts up to 23 mph 37 km/h.
Friday, September 11, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
80°F 26°C
Sunny
Quite warm around 86°F 30°C, overcast in the morning, sunny in the afternoon, and partly cloudy this evening, with steady humidity and steady pressure. Winds blowing from the E at 14 mph 23 km/h. Gusts up to 28 mph 45 km/h.
Saturday, September 12, 2026
Mid-Morning
76°F 24°C
Partly Cloudy
Mid-Afternoon
99°F 37°C
Partly Cloudy
Early-Evening
91°F 33°C
Sunny
Hot temperatures near 99°F 37°C, partly cloudy throughout the day, with lower humidity and steady pressure. Winds swinging from the SE to the ESE at 10 mph 16 km/h.
Sunday, September 13, 2026
Mid-Morning
88°F 31°C
Sunny
Mid-Afternoon
105°F 41°C
Sunny
Early-Evening
97°F 37°C
Partly Cloudy
Sweltering heat reaching 105°F 41°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure. Winds shifting from the SSW to the SW at 11 mph 18 km/h.
Monday, September 14, 2026
Mid-Morning
83°F 28°C
Sunny
Mid-Afternoon
89°F 32°C
Scattered Showers
Early-Evening
85°F 30°C
Cloudy
Quite warm reaching 89°F 32°C, feeling like 92°F 33°C during peak afternoon, scattered downpours possible, with steady humidity and barometric pressure falling. Winds turning from the SW to the S at 9 mph 14 km/h. Gusts up to 21 mph 34 km/h.
Tuesday, September 15, 2026
Mid-Morning
83°F 28°C
Light Showers
Mid-Afternoon
101°F 39°C
Partly Cloudy
Early-Evening
89°F 32°C
Sunny
Dangerously hot with a high of 101°F 39°C, morning showers, giving way to clearing skies, with steady humidity and steady pressure. Winds switching from the WSW to the NNE at 10 mph 16 km/h.
Wednesday, September 16, 2026
Mid-Morning
77°F 25°C
Sunny
Mid-Afternoon
93°F 34°C
Sunny
Early-Evening
86°F 30°C
Sunny
Sizzling hot with 93°F 34°C, sunny throughout the day, with steady humidity and barometric pressure falling. Winds moving from the ENE to the E at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.
Thursday, September 17, 2026
Mid-Morning
75°F 24°C
Overcast
Mid-Afternoon
94°F 35°C
Overcast
Early-Evening
87°F 31°C
Overcast
Hot temperatures near 94°F 35°C, overcast throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the E to the ESE at 11 mph 17 km/h. Gusts up to 20 mph 32 km/h.
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