Martinsburg, IL Weather Forecast
Local 7-day forecast
Mostly Sunny then Scattered Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Martinsburg, IL in one place.
Scattered showers and thunderstorms after 3pm. Mostly sunny, with a high near 83. South wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Local Weather Overview
This forecast page for Martinsburg, 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 16, 2026 8:26 PM CDT.
The active forecast window currently covers Apr 17 to Apr 23, 2026 for Martinsburg, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 23, 2026
- Latest sync
- Apr 16, 2026 8:26 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Martinsburg
Friday looks like the warmest upcoming period in Martinsburg at 83 degrees F.
Saturday Night is the coolest period ahead with temperatures near 37 degrees F.
The strongest winds are forecast for Friday at about 6 to 14 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 8:26 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms before midnight, then showers and thunderstorms. Mostly cloudy. Low around 44, with temperatures rising to around 50 overnight. Southwest wind around 12 mph, with gusts as high as 24 mph. Chance of precipitation is 100%.
Scattered rain showers before 1pm. Mostly sunny, with a high near 55. Northwest wind around 13 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Mostly clear, with a low around 37. West wind 6 to 12 mph, with gusts as high as 23 mph.
Sunny, with a high near 62.
Mostly clear, with a low around 40.
Sunny, with a high near 71.
Mostly clear, with a low around 51.
Sunny, with a high near 76.
Mostly clear, with a low around 55.
Sunny, with a high near 77.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 56. Chance of precipitation is 20%.
A slight chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 77. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Mostly Sunny then Scattered Showers And Thunderstorms
|
83°F |
6 to 14 mph
S
|
|
Friday Night
Apr 17
|
Showers And Thunderstorms
|
44°F |
12 mph
SW
|
|
Saturday
Apr 18
|
Scattered Rain Showers
|
55°F |
13 mph
NW
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
37°F |
6 to 12 mph
W
|
|
Sunday
Apr 19
|
Sunny
|
62°F |
5 to 10 mph
NW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
40°F |
6 mph
NE
|
|
Monday
Apr 20
|
Sunny
|
71°F |
5 to 8 mph
SE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
51°F |
8 mph
S
|
|
Tuesday
Apr 21
|
Sunny
|
76°F |
8 to 12 mph
SW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
55°F |
8 mph
SW
|
|
Wednesday
Apr 22
|
Sunny
|
77°F |
7 mph
SW
|
|
Wednesday Night
Apr 22
|
Partly Cloudy then Slight Chance Rain Showers
|
56°F |
6 mph
S
|
|
Thursday
Apr 23
|
Chance Showers And Thunderstorms
|
77°F |
6 to 10 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Martinsburg.