Prairie Grove, IL Weather Forecast
Local 7-day forecast
Patchy Smoke
Track current conditions, temperature changes, wind, and the full daily outlook for Prairie Grove, IL in one place.
Patchy smoke and scattered showers and thunderstorms before 3pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 89. Heat index values as high as 96. West southwest wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Prairie Grove, 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: Jul 17, 2026 3:24 PM CDT.
The active forecast window currently covers Jul 17 to Jul 23, 2026 for Prairie Grove, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 17 to Jul 23, 2026
- Latest sync
- Jul 17, 2026 3:24 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Prairie Grove
This Afternoon looks like the warmest upcoming period in Prairie Grove at 89 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph WNW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 17, 2026 3:24 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
Scattered showers and thunderstorms before 9pm. Partly cloudy, with a low around 73. West southwest wind 5 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms between 11am and 3pm, then patchy smoke and a chance of showers and thunderstorms between 3pm and 4pm, then patchy smoke and a slight chance of showers and thunderstorms. Mostly sunny. High near 86, with temperatures falling to around 82 in the afternoon. Heat index values as high as 95. West northwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Areas of smoke. Mostly clear, with a low around 63. Northeast wind 5 to 10 mph, with gusts as high as 20 mph.
Areas of smoke before 8am. Sunny, with a high near 81. East northeast wind around 5 mph.
Partly cloudy, with a low around 66.
A chance of showers and thunderstorms after 7am. Partly sunny, with a high near 86.
A chance of showers and thunderstorms before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 70.
Showers and thunderstorms likely before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 84.
Mostly clear, with a low around 60.
Sunny, with a high near 75.
Mostly clear, with a low around 57.
Sunny, with a high near 80.
Mostly clear, with a low around 60.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 17
|
Patchy Smoke
|
89°F |
10 mph
WSW
|
|
Tonight
Jul 17
|
Scattered Showers And Thunderstorms then Partly Cloudy
|
73°F |
5 to 10 mph
WSW
|
|
Saturday
Jul 18
|
Chance Showers And Thunderstorms
|
86°F |
10 to 15 mph
WNW
|
|
Saturday Night
Jul 18
|
Areas Of Smoke
|
63°F |
5 to 10 mph
NE
|
|
Sunday
Jul 19
|
Areas Of Smoke then Sunny
|
81°F |
5 mph
ENE
|
|
Sunday Night
Jul 19
|
Partly Cloudy
|
66°F |
5 mph
SSE
|
|
Monday
Jul 20
|
Chance Showers And Thunderstorms
|
86°F |
5 to 15 mph
SSW
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
70°F |
10 to 15 mph
WSW
|
|
Tuesday
Jul 21
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
84°F |
10 to 15 mph
WNW
|
|
Tuesday Night
Jul 21
|
Mostly Clear
|
60°F |
5 to 15 mph
NW
|
|
Wednesday
Jul 22
|
Sunny
|
75°F |
5 to 10 mph
NNW
|
|
Wednesday Night
Jul 22
|
Mostly Clear
|
57°F |
0 to 5 mph
NW
|
|
Thursday
Jul 23
|
Sunny
|
80°F |
0 to 5 mph
W
|
|
Thursday Night
Jul 23
|
Mostly Clear
|
60°F |
0 to 5 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Prairie Grove.