Foster, IN Weather Forecast
Local 7-day forecast
Mostly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Foster, IN in one place.
A slight chance of showers and thunderstorms after 5pm. Mostly sunny. High near 95, with temperatures falling to around 93 in the afternoon. Heat index values as high as 105. Southwest wind 8 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Foster, 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 1:23 PM EDT.
The active forecast window currently covers Sep 15 to Sep 21, 2026 for Foster, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 15 to Sep 21, 2026
- Latest sync
- Sep 15, 2026 1:23 PM EDT
- Forecast office
- IND
- Source
- NOAA / NWS
Daily Outlook
This Week in Foster
Today looks like the warmest upcoming period in Foster at 95 degrees F.
Monday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Today at about 8 to 13 mph SW.
Precipitation is mentioned in 11 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 15, 2026 1:23 PM EDT
- Coverage
- 7 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
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms likely between 10pm and 2am, then a chance of showers and thunderstorms between 2am and 3am, then showers and thunderstorms likely. Mostly cloudy, with a low around 70. Heat index values as high as 101. South wind 1 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely before 2pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 88. East southeast wind around 3 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 70. East wind around 3 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 2pm. Partly sunny, with a high near 90. West wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a half and three quarters of an inch possible.
Mostly cloudy, with a low around 67. North northeast wind around 5 mph.
A slight chance of showers and thunderstorms between 8am and 2pm. Partly sunny, with a high near 86. East northeast wind around 7 mph. Chance of precipitation is 20%.
Partly cloudy, with a low around 67. East southeast wind around 7 mph.
Mostly sunny, with a high near 91. South southwest wind 7 to 12 mph.
A chance of rain showers between 8pm and 2am, then showers and thunderstorms likely. Partly cloudy, with a low around 69. South southwest wind 5 to 9 mph. Chance of precipitation is 60%.
Showers and thunderstorms likely before 2pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 86. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 40%.
A chance of rain showers. Mostly cloudy, with a high near 79. Chance of precipitation is 40%.
A chance of rain showers before 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 15
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
95°F |
8 to 13 mph
SW
|
|
Tonight
Sep 15
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
70°F |
1 to 7 mph
S
|
|
Wednesday
Sep 16
|
Showers And Thunderstorms Likely
|
88°F |
3 mph
ESE
|
|
Wednesday Night
Sep 16
|
Chance Showers And Thunderstorms
|
70°F |
3 mph
E
|
|
Thursday
Sep 17
|
Chance Showers And Thunderstorms
|
90°F |
5 mph
W
|
|
Thursday Night
Sep 17
|
Mostly Cloudy
|
67°F |
5 mph
NNE
|
|
Friday
Sep 18
|
Slight Chance Showers And Thunderstorms
|
86°F |
7 mph
ENE
|
|
Friday Night
Sep 18
|
Partly Cloudy
|
67°F |
7 mph
ESE
|
|
Saturday
Sep 19
|
Mostly Sunny
|
91°F |
7 to 12 mph
SSW
|
|
Saturday Night
Sep 19
|
Showers And Thunderstorms Likely
|
69°F |
5 to 9 mph
SSW
|
|
Sunday
Sep 20
|
Showers And Thunderstorms Likely
|
86°F |
5 to 10 mph
W
|
|
Sunday Night
Sep 20
|
Chance Showers And Thunderstorms
|
64°F |
6 to 12 mph
NNE
|
|
Monday
Sep 21
|
Chance Rain Showers
|
79°F |
8 to 12 mph
N
|
|
Monday Night
Sep 21
|
Chance Rain Showers
|
60°F |
6 to 12 mph
NNE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Foster.