Vandalia, OH Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Vandalia, OH in one place.
A slight chance of showers and thunderstorms after 5pm. Mostly sunny, with a high near 74. Northwest wind 8 to 12 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Vandalia, OH 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: Aug 23, 2026 2:42 PM EDT.
The active forecast window currently covers Aug 23 to Aug 29, 2026 for Vandalia, OH.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 23 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 2:42 PM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Vandalia
Wednesday looks like the warmest upcoming period in Vandalia at 82 degrees F.
Tonight is the coolest period ahead with temperatures near 54 degrees F.
The strongest winds are forecast for This Afternoon at about 8 to 12 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 2:42 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- ILN
- Radar station
- KILN
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 1am, then patchy fog. Partly cloudy, with a low around 54. Northwest wind 3 to 12 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
Patchy fog before 9am. Sunny, with a high near 76. West wind 3 to 10 mph.
Partly cloudy, with a low around 54. Northwest wind 1 to 8 mph.
Sunny, with a high near 79. Northwest wind 0 to 3 mph.
Partly cloudy, with a low around 59.
Mostly sunny, with a high near 82.
A chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 64. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 63. Chance of precipitation is 40%.
Sunny, with a high near 80.
Partly cloudy, with a low around 61.
Mostly sunny, with a high near 80.
Partly cloudy, with a low around 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Aug 23
|
Slight Chance Showers And Thunderstorms
|
74°F |
8 to 12 mph
NW
|
|
Tonight
Aug 23
|
Chance Showers And Thunderstorms
|
54°F |
3 to 12 mph
NW
|
|
Monday
Aug 24
|
Patchy Fog then Sunny
|
76°F |
3 to 10 mph
W
|
|
Monday Night
Aug 24
|
Partly Cloudy
|
54°F |
1 to 8 mph
NW
|
|
Tuesday
Aug 25
|
Sunny
|
79°F |
0 to 3 mph
NW
|
|
Tuesday Night
Aug 25
|
Partly Cloudy
|
59°F |
3 mph
NE
|
|
Wednesday
Aug 26
|
Mostly Sunny
|
82°F |
3 to 7 mph
S
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms
|
64°F |
6 mph
S
|
|
Thursday
Aug 27
|
Mostly Sunny then Chance Showers And Thunderstorms
|
82°F |
3 to 9 mph
SW
|
|
Thursday Night
Aug 27
|
Chance Showers And Thunderstorms then Partly Cloudy
|
63°F |
5 to 8 mph
NW
|
|
Friday
Aug 28
|
Sunny
|
80°F |
5 to 8 mph
NW
|
|
Friday Night
Aug 28
|
Partly Cloudy
|
61°F |
3 to 7 mph
N
|
|
Saturday
Aug 29
|
Mostly Sunny
|
80°F |
3 to 7 mph
E
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
62°F |
7 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Vandalia.
