Helena, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Helena, IL in one place.
Sunny, with a high near 98. Heat index values as high as 104. South southwest wind around 9 mph.
Local Weather Overview
This forecast page for Helena, 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: Sep 15, 2026 5:17 PM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Helena, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 5:17 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Helena
This Afternoon looks like the warmest upcoming period in Helena at 98 degrees F.
Monday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Saturday at about 5 to 10 mph SSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 5:17 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KVWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 72. South wind 1 to 7 mph.
Mostly sunny, with a high near 95. South southwest wind 1 to 7 mph.
Partly cloudy, with a low around 73. South southwest wind around 5 mph.
Sunny, with a high near 97. West wind 2 to 7 mph.
Mostly clear, with a low around 72. North northeast wind around 3 mph.
Sunny, with a high near 95. East southeast wind around 5 mph.
Mostly clear, with a low around 71.
Sunny, with a high near 96.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 72.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 94.
A chance of showers and thunderstorms. Partly cloudy, with a low around 68.
A chance of showers and thunderstorms. Mostly sunny, with a high near 86.
A chance of showers and thunderstorms before 1am. Mostly cloudy, with a low around 64.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Sep 15
|
Sunny
|
98°F |
9 mph
SSW
|
|
Tonight
Sep 15
|
Partly Cloudy
|
72°F |
1 to 7 mph
S
|
|
Wednesday
Sep 16
|
Mostly Sunny
|
95°F |
1 to 7 mph
SSW
|
|
Wednesday Night
Sep 16
|
Partly Cloudy
|
73°F |
5 mph
SSW
|
|
Thursday
Sep 17
|
Sunny
|
97°F |
2 to 7 mph
W
|
|
Thursday Night
Sep 17
|
Mostly Clear
|
72°F |
3 mph
NNE
|
|
Friday
Sep 18
|
Sunny
|
95°F |
5 mph
ESE
|
|
Friday Night
Sep 18
|
Mostly Clear
|
71°F |
6 mph
ESE
|
|
Saturday
Sep 19
|
Sunny
|
96°F |
5 to 10 mph
SSW
|
|
Saturday Night
Sep 19
|
Partly Cloudy then Slight Chance Rain Showers
|
72°F |
6 mph
SSW
|
|
Sunday
Sep 20
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
94°F |
5 to 10 mph
W
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
68°F |
5 to 8 mph
E
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
86°F |
5 to 9 mph
WSW
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
64°F |
6 to 9 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Helena.