Harmony, IL Weather Forecast
Local 7-day forecast
Partly Sunny then Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Harmony, IL in one place.
A slight chance of rain showers after 5pm. Partly sunny. High near 79, with temperatures falling to around 77 in the afternoon. East northeast wind around 1 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Harmony, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 23, 2026 7:28 PM CDT.
The active forecast window currently covers Jul 24 to Jul 29, 2026 for Harmony, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 29, 2026
- Latest sync
- Jul 23, 2026 7:28 PM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Harmony
Monday looks like the warmest upcoming period in Harmony at 96 degrees F.
Friday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Monday at about 3 to 9 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 23, 2026 7:28 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- PAH
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 65. East wind around 1 mph. Chance of precipitation is 50%.
Showers and thunderstorms likely before 1pm. Partly sunny, with a high near 85. South southwest wind 1 to 5 mph. Chance of precipitation is 50%.
Partly cloudy, with a low around 71. South wind around 2 mph.
Mostly sunny, with a high near 91. Northwest wind around 1 mph.
Mostly clear, with a low around 73. South southwest wind around 2 mph.
Sunny, with a high near 96. Southwest wind 3 to 9 mph.
Mostly clear, with a low around 76. Southwest wind around 6 mph.
Sunny, with a high near 94. West northwest wind 5 to 8 mph.
Partly cloudy, with a low around 72. North northeast wind 2 to 7 mph.
Mostly sunny, with a high near 90. Northeast wind around 5 mph.
Partly cloudy, with a low around 70. East wind around 3 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 24
|
Partly Sunny then Slight Chance Rain Showers
|
79°F |
1 mph
ENE
|
|
Friday Night
Jul 24
|
Showers And Thunderstorms Likely
|
65°F |
1 mph
E
|
|
Saturday
Jul 25
|
Showers And Thunderstorms Likely
|
85°F |
1 to 5 mph
SSW
|
|
Saturday Night
Jul 25
|
Partly Cloudy
|
71°F |
2 mph
S
|
|
Sunday
Jul 26
|
Mostly Sunny
|
91°F |
1 mph
NW
|
|
Sunday Night
Jul 26
|
Mostly Clear
|
73°F |
2 mph
SSW
|
|
Monday
Jul 27
|
Sunny
|
96°F |
3 to 9 mph
SW
|
|
Monday Night
Jul 27
|
Mostly Clear
|
76°F |
6 mph
SW
|
|
Tuesday
Jul 28
|
Sunny
|
94°F |
5 to 8 mph
WNW
|
|
Tuesday Night
Jul 28
|
Partly Cloudy
|
72°F |
2 to 7 mph
NNE
|
|
Wednesday
Jul 29
|
Mostly Sunny
|
90°F |
5 mph
NE
|
|
Wednesday Night
Jul 29
|
Partly Cloudy
|
70°F |
3 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harmony.