Waterloo, IN Weather Forecast
Local 7-day forecast
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Waterloo, IN in one place.
A chance of rain showers before 10am, then a slight chance of showers and thunderstorms between 2pm and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 74. East wind around 6 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Waterloo, 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: Oct 14, 2026 10:11 AM EDT.
The active forecast window currently covers Oct 15 to Oct 20, 2026 for Waterloo, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 20, 2026
- Latest sync
- Oct 14, 2026 10:11 AM EDT
- Forecast office
- ILN
- Source
- NOAA / NWS
Daily Outlook
This Week in Waterloo
Thursday looks like the warmest upcoming period in Waterloo at 74 degrees F.
Saturday Night is the coolest period ahead with temperatures near 33 degrees F.
The strongest winds are forecast for Friday at about 12 to 18 mph W.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 14, 2026 10:11 AM EDT
- Coverage
- 6 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- ILN
- Radar station
- KIND
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms after 7pm. Mostly cloudy, with a low around 56. Southwest wind 5 to 10 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers. Mostly cloudy, with a high near 60. West wind 12 to 18 mph, with gusts as high as 36 mph. Chance of precipitation is 90%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 8pm. Partly cloudy, with a low around 36. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 56.
Clear, with a low around 33.
Sunny, with a high near 63.
Mostly clear, with a low around 41.
Mostly sunny, with a high near 66.
Mostly cloudy, with a low around 44.
Partly sunny, with a high near 70.
Partly cloudy, with a low around 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
74°F |
6 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
56°F |
5 to 10 mph
SW
|
|
Friday
Oct 16
|
Rain Showers
|
60°F |
12 to 18 mph
W
|
|
Friday Night
Oct 16
|
Slight Chance Rain Showers then Partly Cloudy
|
36°F |
7 to 17 mph
NW
|
|
Saturday
Oct 17
|
Sunny
|
56°F |
1 to 6 mph
N
|
|
Saturday Night
Oct 17
|
Clear
|
33°F |
1 mph
E
|
|
Sunday
Oct 18
|
Sunny
|
63°F |
1 to 6 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
41°F |
3 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
66°F |
2 to 6 mph
SW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
44°F |
0 to 3 mph
S
|
|
Tuesday
Oct 20
|
Partly Sunny
|
70°F |
2 mph
SE
|
|
Tuesday Night
Oct 20
|
Partly Cloudy
|
46°F |
2 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Waterloo.