Harmony, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Harmony, IL in one place.
Mostly sunny. High near 54, with temperatures falling to around 48 in the afternoon. North northwest wind 7 to 12 mph.
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: Nov 6, 2026 10:25 AM CST.
The active forecast window currently covers Nov 6 to Nov 12, 2026 for Harmony, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 10:25 AM CST
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Harmony
Monday looks like the warmest upcoming period in Harmony at 67 degrees F.
Tonight is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Today at about 7 to 12 mph NNW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 6, 2026 10:25 AM CST
- Coverage
- 8 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
Widespread frost after 9pm. Clear, with a low around 29. North northwest wind around 5 mph.
Widespread frost before 9am. Sunny. High near 54, with temperatures falling to around 49 in the afternoon. Northwest wind 1 to 5 mph.
Widespread frost after 8pm. Mostly clear, with a low around 30. West northwest wind around 2 mph.
Widespread frost before 8am. Sunny, with a high near 61. West southwest wind 2 to 7 mph.
Clear, with a low around 36. West southwest wind around 2 mph.
Sunny, with a high near 67. West southwest wind 0 to 6 mph.
Clear, with a low around 40. Southwest wind around 5 mph.
Sunny, with a high near 67. West wind 1 to 5 mph.
Mostly clear, with a low around 40. Wind around 0 mph.
Sunny, with a high near 65. Northwest wind 0 to 5 mph.
A slight chance of rain showers. Partly cloudy, with a low around 41. North northwest wind around 2 mph.
Mostly sunny, with a high near 60. North northwest wind 3 to 10 mph.
Mostly clear, with a low around 37. North northwest wind around 5 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Nov 6
|
Mostly Sunny
|
54°F |
7 to 12 mph
NNW
|
|
Tonight
Nov 6
|
Widespread Frost
|
29°F |
5 mph
NNW
|
|
Saturday
Nov 7
|
Widespread Frost then Sunny
|
54°F |
1 to 5 mph
NW
|
|
Saturday Night
Nov 7
|
Widespread Frost
|
30°F |
2 mph
WNW
|
|
Sunday
Nov 8
|
Widespread Frost then Sunny
|
61°F |
2 to 7 mph
WSW
|
|
Sunday Night
Nov 8
|
Clear
|
36°F |
2 mph
WSW
|
|
Monday
Nov 9
|
Sunny
|
67°F |
0 to 6 mph
WSW
|
|
Monday Night
Nov 9
|
Clear
|
40°F |
5 mph
SW
|
|
Tuesday
Nov 10
|
Sunny
|
67°F |
1 to 5 mph
W
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
40°F |
0 mph
|
|
Veterans Day
Nov 11
|
Sunny
|
65°F |
0 to 5 mph
NW
|
|
Wednesday Night
Nov 11
|
Slight Chance Rain Showers
|
41°F |
2 mph
NNW
|
|
Thursday
Nov 12
|
Mostly Sunny
|
60°F |
3 to 10 mph
NNW
|
|
Thursday Night
Nov 12
|
Mostly Clear
|
37°F |
5 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harmony.