Saint Joseph County, IN Weather Forecast
County weather hub
Sunny
Compare major city weather across Saint Joseph County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 66.
County Weather Overview
This county weather page brings together forecast coverage for Saint Joseph County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 7 of 7 mapped cities in Saint Joseph County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 8 to Oct 12, 2026
- Latest sync
- Oct 6, 2026 7:47 AM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Joseph County
Sunday looks like the warmest upcoming period in Saint Joseph County at 80 degrees F.
Thursday Night is the coolest period ahead with temperatures near 45 degrees F.
The strongest winds are forecast for Saturday Night at about 10 to 15 mph S.
The forecast from Oct 8 through Oct 12 stays mostly dry.
Forecast Details
- Last updated
- Oct 6, 2026 7:47 AM EDT
- Coverage
- 5 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- IWX
- Radar station
- KIWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 45.
Sunny, with a high near 68.
Mostly clear, with a low around 49.
Sunny, with a high near 78.
Partly cloudy, with a low around 56.
Mostly sunny, with a high near 80.
Partly cloudy, with a low around 55.
Mostly sunny, with a high near 76.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 8
|
Sunny
|
66°F |
5 to 10 mph
NW
|
|
Thursday Night
Oct 8
|
Mostly Clear
|
45°F |
0 to 10 mph
NW
|
|
Friday
Oct 9
|
Sunny
|
68°F |
0 to 5 mph
SW
|
|
Friday Night
Oct 9
|
Mostly Clear
|
49°F |
5 mph
S
|
|
Saturday
Oct 10
|
Sunny
|
78°F |
5 to 10 mph
S
|
|
Saturday Night
Oct 10
|
Partly Cloudy
|
56°F |
10 to 15 mph
S
|
|
Sunday
Oct 11
|
Mostly Sunny
|
80°F |
10 mph
S
|
|
Sunday Night
Oct 11
|
Partly Cloudy
|
55°F |
5 to 10 mph
S
|
|
Columbus Day
Oct 12
|
Mostly Sunny
|
76°F |
5 to 10 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Joseph County.
Coverage
Forecast coverage currently spans 7 of 7 mapped cities in Saint Joseph County.
Largest mapped city population in this region: 101,868.
