Saint Lucas, IA Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Saint Lucas, IA in one place.
Rain showers before 2pm. Mostly cloudy, with a high near 78. South wind 10 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Saint Lucas, IA 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: Aug 28, 2026 6:00 PM CDT.
The active forecast window currently covers Aug 29 to Sep 3, 2026 for Saint Lucas, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 3, 2026
- Latest sync
- Aug 28, 2026 6:00 PM CDT
- Forecast office
- ARX
- Source
- NOAA / NWS
Daily Outlook
This Week in Saint Lucas
Monday looks like the warmest upcoming period in Saint Lucas at 87 degrees F.
Saturday Night is the coolest period ahead with temperatures near 68 degrees F.
The strongest winds are forecast for Saturday at about 10 to 18 mph S.
Precipitation is mentioned in 12 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 28, 2026 6:00 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ARX
- Radar station
- KARX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 68. South wind 12 to 16 mph, with gusts as high as 25 mph. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 85. South wind 10 to 14 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 72. South wind around 12 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am. Partly sunny, with a high near 87. Southwest wind 7 to 12 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 71. South wind around 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Partly sunny, with a high near 86. South wind around 5 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 69. South wind 2 to 6 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86. Southwest wind around 6 mph. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. Southeast wind around 5 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. South wind 6 to 9 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 7pm, then a slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68. South wind around 8 mph. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Rain Showers
|
78°F |
10 to 18 mph
S
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
68°F |
12 to 16 mph
S
|
|
Sunday
Aug 30
|
Slight Chance Rain Showers
|
85°F |
10 to 14 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
72°F |
12 mph
S
|
|
Monday
Aug 31
|
Slight Chance Showers And Thunderstorms then Partly Sunny
|
87°F |
7 to 12 mph
SW
|
|
Monday Night
Aug 31
|
Mostly Cloudy then Chance Showers And Thunderstorms
|
71°F |
5 mph
S
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
86°F |
5 mph
S
|
|
Tuesday Night
Sep 1
|
Chance Showers And Thunderstorms
|
69°F |
2 to 6 mph
S
|
|
Wednesday
Sep 2
|
Chance Showers And Thunderstorms
|
86°F |
6 mph
SW
|
|
Wednesday Night
Sep 2
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
68°F |
5 mph
SE
|
|
Thursday
Sep 3
|
Slight Chance Showers And Thunderstorms
|
86°F |
6 to 9 mph
S
|
|
Thursday Night
Sep 3
|
Slight Chance Showers And Thunderstorms
|
68°F |
8 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Saint Lucas.