Saint Joseph, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Joseph, IL in one place.
Sunny, with a high near 79. Northwest wind 2 to 7 mph.
Local Weather Overview
This forecast page for Saint Joseph, IL 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 8, 2026 11:54 AM CDT.
The active forecast window currently covers Oct 8 to Oct 14, 2026 for Saint Joseph, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 8 to Oct 14, 2026
- Latest sync
- Oct 8, 2026 11:54 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Joseph
Saturday looks like the warmest upcoming period in Saint Joseph at 84 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Tuesday at about 13 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 8, 2026 11:54 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
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 52. East northeast wind around 3 mph.
Mostly sunny, with a high near 83. South southeast wind 3 to 10 mph, with gusts as high as 17 mph.
Mostly clear, with a low around 59. South southeast wind around 7 mph.
Mostly sunny, with a high near 84. South wind 6 to 9 mph, with gusts as high as 16 mph.
Rain showers likely after 7pm. Mostly cloudy, with a low around 59. Southeast wind around 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Rain showers likely. Mostly cloudy, with a high near 74. Northeast wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A slight chance of rain showers before 7pm. Partly cloudy, with a low around 56.
Sunny, with a high near 84.
A slight chance of rain showers after 1am. Mostly clear, with a low around 59.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 74.
Partly cloudy, with a low around 47.
Sunny, with a high near 70.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 50.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Oct 8
|
Sunny
|
79°F |
2 to 7 mph
NW
|
|
Tonight
Oct 8
|
Mostly Clear
|
52°F |
3 mph
ENE
|
|
Friday
Oct 9
|
Mostly Sunny
|
83°F |
3 to 10 mph
SSE
|
|
Friday Night
Oct 9
|
Mostly Clear
|
59°F |
7 mph
SSE
|
|
Saturday
Oct 10
|
Mostly Sunny
|
84°F |
6 to 9 mph
S
|
|
Saturday Night
Oct 10
|
Rain Showers Likely
|
59°F |
7 mph
SE
|
|
Sunday
Oct 11
|
Rain Showers Likely
|
74°F |
3 to 7 mph
NE
|
|
Sunday Night
Oct 11
|
Slight Chance Rain Showers then Partly Cloudy
|
56°F |
3 mph
WNW
|
|
Columbus Day
Oct 12
|
Sunny
|
84°F |
2 to 9 mph
SW
|
|
Monday Night
Oct 12
|
Mostly Clear then Slight Chance Rain Showers
|
59°F |
7 to 10 mph
WSW
|
|
Tuesday
Oct 13
|
Slight Chance Rain Showers then Mostly Sunny
|
74°F |
13 mph
NW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy
|
47°F |
5 to 9 mph
N
|
|
Wednesday
Oct 14
|
Sunny
|
70°F |
6 mph
ENE
|
|
Wednesday Night
Oct 14
|
Partly Cloudy then Slight Chance Rain Showers
|
50°F |
6 mph
SE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Joseph.