Saint Joseph County, MI Weather Forecast
County weather hub
Showers And Thunderstorms
Compare major city weather across Saint Joseph County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers between 8am and 2pm, then showers and thunderstorms. Mostly cloudy, with a high near 65. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
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 2 of 2 mapped cities in Saint Joseph County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 15 to Oct 19, 2026
- Latest sync
- Oct 13, 2026 5:07 PM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Joseph County
Thursday looks like the warmest upcoming period in Saint Joseph County at 65 degrees F.
Friday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Friday at about 15 to 20 mph NW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 13, 2026 5:07 PM EDT
- Coverage
- 5 days
- Time zone
- America/Detroit
- 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
Showers and thunderstorms. Cloudy, with a low around 49. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Rain showers likely. Partly sunny, with a high near 57. Chance of precipitation is 60%.
A chance of rain showers before 8pm. Partly cloudy, with a low around 35. Chance of precipitation is 30%.
Sunny, with a high near 58.
Clear, with a low around 36.
Sunny, with a high near 63.
Partly cloudy, with a low around 44.
Partly sunny, with a high near 65.
Mostly cloudy, with a low around 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
65°F |
5 to 10 mph
E
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms
|
49°F |
5 to 15 mph
SW
|
|
Friday
Oct 16
|
Rain Showers Likely
|
57°F |
15 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Chance Rain Showers then Partly Cloudy
|
35°F |
5 to 20 mph
NW
|
|
Saturday
Oct 17
|
Sunny
|
58°F |
0 to 10 mph
NW
|
|
Saturday Night
Oct 17
|
Clear
|
36°F |
5 to 10 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
63°F |
5 to 15 mph
SW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
44°F |
10 mph
S
|
|
Monday
Oct 19
|
Partly Sunny
|
65°F |
5 to 10 mph
SW
|
|
Monday Night
Oct 19
|
Mostly Cloudy
|
46°F |
0 to 5 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Saint Joseph County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Saint Joseph County.
Largest mapped city population in this region: 7,600.
