Alpha, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms then Showers And Thunderstorms Likely
Track current conditions, temperature changes, wind, and the full daily outlook for Alpha, IL in one place.
A chance of rain showers before 7am, then showers and thunderstorms between 7am and 11am, then showers and thunderstorms likely between 11am and 1pm, then showers and thunderstorms. Some of the storms could produce heavy rain. Mostly cloudy, with a high near 78. South wind 10 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
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: Jun 16, 2026 6:09 PM CDT.
The active forecast window currently covers Jun 17 to Jun 22, 2026 for Alpha, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 17 to Jun 22, 2026
- Latest sync
- Jun 16, 2026 6:09 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in Alpha
Saturday looks like the warmest upcoming period in Alpha at 79 degrees F.
Thursday Night is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for Wednesday at about 10 to 18 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 16, 2026 6:09 PM 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
A chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 59. West wind around 15 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts between a half and three quarters of an inch possible.
Mostly sunny, with a high near 74. West northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Clear, with a low around 54. Northwest wind 3 to 9 mph, with gusts as high as 16 mph.
Sunny, with a high near 77. West northwest wind 5 to 9 mph.
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 58.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 79.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 61.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 76.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 59.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 77.
Partly cloudy, with a low around 57.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Jun 17
|
Showers And Thunderstorms then Showers And Thunderstorms Likely
|
78°F |
10 to 18 mph
S
|
|
Wednesday Night
Jun 17
|
Chance Showers And Thunderstorms then Mostly Clear
|
59°F |
15 mph
W
|
|
Thursday
Jun 18
|
Mostly Sunny
|
74°F |
10 to 15 mph
WNW
|
|
Thursday Night
Jun 18
|
Clear
|
54°F |
3 to 9 mph
NW
|
|
Juneteenth
Jun 19
|
Sunny
|
77°F |
5 to 9 mph
WNW
|
|
Friday Night
Jun 19
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
58°F |
2 to 6 mph
WSW
|
|
Saturday
Jun 20
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
79°F |
6 mph
SW
|
|
Saturday Night
Jun 20
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
61°F |
8 mph
ESE
|
|
Sunday
Jun 21
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
76°F |
9 to 13 mph
ESE
|
|
Sunday Night
Jun 21
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
59°F |
15 mph
ENE
|
|
Monday
Jun 22
|
Chance Showers And Thunderstorms
|
77°F |
13 mph
ENE
|
|
Monday Night
Jun 22
|
Partly Cloudy
|
57°F |
5 to 10 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Alpha.