Dahlgren, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Dahlgren, IL in one place.
Sunny, with a high near 78. West southwest wind 7 to 12 mph.
Local Weather Overview
This forecast page for Dahlgren, 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: Apr 21, 2026 9:52 PM CDT.
The active forecast window currently covers Apr 22 to Apr 28, 2026 for Dahlgren, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 28, 2026
- Latest sync
- Apr 21, 2026 9:52 PM CDT
- Forecast office
- PAH
- Source
- NOAA / NWS
Daily Outlook
This Week in Dahlgren
Thursday looks like the warmest upcoming period in Dahlgren at 80 degrees F.
Saturday Night is the coolest period ahead with temperatures near 52 degrees F.
The strongest winds are forecast for Thursday at about 6 to 16 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 9:52 PM CDT
- Coverage
- 7 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
Mostly clear, with a low around 56. South southwest wind around 7 mph.
Sunny, with a high near 80. South wind 6 to 16 mph, with gusts as high as 22 mph.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 62. South wind around 12 mph, with gusts as high as 21 mph. Chance of precipitation is 30%.
Showers and thunderstorms. Mostly cloudy, with a high near 76. South southwest wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%.
Showers and thunderstorms. Mostly cloudy, with a low around 56. Northwest wind 1 to 7 mph.
A chance of showers and thunderstorms. Mostly sunny, with a high near 77. North wind 5 to 8 mph.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 52. Northeast wind around 5 mph.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 77. East wind 6 to 9 mph.
A slight chance of showers and thunderstorms before 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 58. East southeast wind 7 to 13 mph, with gusts as high as 20 mph.
Showers and thunderstorms likely. Partly sunny, with a high near 78. South southeast wind around 15 mph, with gusts as high as 23 mph.
Showers and thunderstorms likely. Partly cloudy, with a low around 55. Southwest wind 9 to 14 mph, with gusts as high as 21 mph.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 73. West wind around 12 mph, with gusts as high as 18 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Sunny
|
78°F |
7 to 12 mph
WSW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
56°F |
7 mph
SSW
|
|
Thursday
Apr 23
|
Sunny
|
80°F |
6 to 16 mph
S
|
|
Thursday Night
Apr 23
|
Partly Cloudy then Chance Showers And Thunderstorms
|
62°F |
12 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms
|
76°F |
9 to 14 mph
SSW
|
|
Friday Night
Apr 24
|
Showers And Thunderstorms
|
56°F |
1 to 7 mph
NW
|
|
Saturday
Apr 25
|
Chance Showers And Thunderstorms
|
77°F |
5 to 8 mph
N
|
|
Saturday Night
Apr 25
|
Slight Chance Rain Showers then Partly Cloudy
|
52°F |
5 mph
NE
|
|
Sunday
Apr 26
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
77°F |
6 to 9 mph
E
|
|
Sunday Night
Apr 26
|
Slight Chance Showers And Thunderstorms
|
58°F |
7 to 13 mph
ESE
|
|
Monday
Apr 27
|
Showers And Thunderstorms Likely
|
78°F |
15 mph
SSE
|
|
Monday Night
Apr 27
|
Showers And Thunderstorms Likely
|
55°F |
9 to 14 mph
SW
|
|
Tuesday
Apr 28
|
Slight Chance Rain Showers then Mostly Sunny
|
73°F |
12 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Dahlgren.