Helmar, IL Weather Forecast
Local 7-day forecast
Scattered Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Helmar, IL in one place.
Scattered showers and thunderstorms before 3pm, then isolated showers and thunderstorms. Partly sunny, with a high near 80. West southwest wind 5 to 10 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Helmar, 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 2:31 PM CDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Helmar, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 2:31 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Helmar
Saturday looks like the warmest upcoming period in Helmar at 83 degrees F.
Monday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph SSW.
Precipitation is mentioned in 14 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 2:31 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 64. North wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 76. Northeast wind 5 to 10 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
A slight chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 66. Southeast wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 81. West northwest wind around 5 mph, with gusts as high as 15 mph. Chance of precipitation is 60%.
A slight chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 80.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 83.
Showers and thunderstorms likely. Mostly cloudy, with a low around 64.
A chance of showers and thunderstorms. Partly sunny, with a high near 76.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58.
A slight chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 72.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 54.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Sep 15
|
Scattered Showers And Thunderstorms
|
80°F |
5 to 10 mph
WSW
|
|
Tonight
Sep 15
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
64°F |
5 mph
N
|
|
Wednesday
Sep 16
|
Chance Showers And Thunderstorms
|
76°F |
5 to 10 mph
NE
|
|
Wednesday Night
Sep 16
|
Slight Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
66°F |
5 mph
SE
|
|
Thursday
Sep 17
|
Showers And Thunderstorms Likely
|
81°F |
5 mph
WNW
|
|
Thursday Night
Sep 17
|
Slight Chance Showers And Thunderstorms then Chance Showers And Thunderstorms
|
65°F |
5 mph
NE
|
|
Friday
Sep 18
|
Chance Showers And Thunderstorms
|
80°F |
5 to 10 mph
E
|
|
Friday Night
Sep 18
|
Chance Showers And Thunderstorms
|
66°F |
10 mph
SE
|
|
Saturday
Sep 19
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
83°F |
10 to 15 mph
SSW
|
|
Saturday Night
Sep 19
|
Showers And Thunderstorms Likely
|
64°F |
10 mph
WNW
|
|
Sunday
Sep 20
|
Chance Showers And Thunderstorms
|
76°F |
10 to 15 mph
N
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
58°F |
10 to 15 mph
NNE
|
|
Monday
Sep 21
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
72°F |
10 to 15 mph
NE
|
|
Monday Night
Sep 21
|
Slight Chance Showers And Thunderstorms
|
54°F |
5 to 15 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Helmar.