Eureka, IN Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Eureka, IN in one place.
A slight chance of showers and thunderstorms between 7am and 11am. Mostly sunny. High near 93, with temperatures falling to around 91 in the afternoon. Heat index values as high as 103. Southwest wind around 3 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Eureka, IN 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: Sep 15, 2026 6:39 PM EDT.
The active forecast window currently covers Sep 16 to Sep 21, 2026 for Eureka, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 16 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 6:39 PM EDT
- Forecast office
- IND
- Source
- NOAA / NWS
Daily Outlook
This Week in Eureka
Wednesday looks like the warmest upcoming period in Eureka at 93 degrees F.
Monday Night is the coolest period ahead with temperatures near 63 degrees F.
The strongest winds are forecast for Sunday at about 2 to 6 mph WSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 6:39 PM EDT
- Coverage
- 6 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- IND
- Radar station
- KIND
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 72. Heat index values as high as 101. West wind around 1 mph.
Sunny, with a high near 93. West southwest wind around 3 mph.
Partly cloudy, with a low around 71. North wind around 1 mph.
A slight chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 89. Northeast wind around 3 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 68. East southeast wind around 3 mph. Chance of precipitation is 20%.
Sunny, with a high near 92. South wind around 5 mph.
A slight chance of rain showers after 2am. Partly cloudy, with a low around 71. South southwest wind around 3 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 2pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Partly cloudy, with a low around 68. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Sep 16
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
93°F |
3 mph
SW
|
|
Wednesday Night
Sep 16
|
Partly Cloudy
|
72°F |
1 mph
W
|
|
Thursday
Sep 17
|
Sunny
|
93°F |
3 mph
WSW
|
|
Thursday Night
Sep 17
|
Partly Cloudy
|
71°F |
1 mph
N
|
|
Friday
Sep 18
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
3 mph
NE
|
|
Friday Night
Sep 18
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
68°F |
3 mph
ESE
|
|
Saturday
Sep 19
|
Sunny
|
92°F |
5 mph
S
|
|
Saturday Night
Sep 19
|
Partly Cloudy then Slight Chance Rain Showers
|
71°F |
3 mph
SSW
|
|
Sunday
Sep 20
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
89°F |
2 to 6 mph
WSW
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
68°F |
1 to 6 mph
ENE
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
83°F |
5 mph
SW
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
63°F |
5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Eureka.