Alpha, IL Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Alpha, IL in one place.
Mostly sunny, with a high near 78. Southwest wind around 9 mph, with gusts as high as 16 mph.
Local Weather Overview
This forecast page for Alpha, 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 9:56 AM CDT.
The active forecast window currently covers Apr 22 to Apr 27, 2026 for Alpha, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 22 to Apr 27, 2026
- Latest sync
- Apr 21, 2026 9:56 AM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Alpha
Thursday looks like the warmest upcoming period in Alpha at 81 degrees F.
Saturday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Thursday at about 9 to 20 mph S.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 21, 2026 9:56 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KDVN
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 59. South wind around 9 mph, with gusts as high as 17 mph.
Mostly sunny, with a high near 81. South wind 9 to 20 mph, with gusts as high as 31 mph.
A chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms. Mostly cloudy, with a low around 59. South wind 14 to 18 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Showers and thunderstorms. Partly sunny, with a high near 72. West southwest wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 49. Chance of precipitation is 30%.
Mostly sunny, with a high near 69.
Partly cloudy, with a low around 47.
A slight chance of rain showers after 1pm. Partly sunny, with a high near 69.
A chance of rain showers before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 68.
A chance of showers and thunderstorms before 1am, then a slight chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 22
|
Mostly Sunny
|
78°F |
9 mph
SW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
59°F |
9 mph
S
|
|
Thursday
Apr 23
|
Mostly Sunny
|
81°F |
9 to 20 mph
S
|
|
Thursday Night
Apr 23
|
Chance Showers And Thunderstorms
|
59°F |
14 to 18 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms
|
72°F |
13 mph
WSW
|
|
Friday Night
Apr 24
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
49°F |
8 to 12 mph
NNW
|
|
Saturday
Apr 25
|
Mostly Sunny
|
69°F |
10 mph
NNE
|
|
Saturday Night
Apr 25
|
Partly Cloudy
|
47°F |
9 mph
NE
|
|
Sunday
Apr 26
|
Partly Sunny then Slight Chance Rain Showers
|
69°F |
8 to 12 mph
ENE
|
|
Sunday Night
Apr 26
|
Chance Rain Showers
|
51°F |
10 mph
E
|
|
Monday
Apr 27
|
Chance Showers And Thunderstorms
|
68°F |
12 to 15 mph
ESE
|
|
Monday Night
Apr 27
|
Chance Showers And Thunderstorms
|
49°F |
14 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Alpha.