Old Saint Marys, TX Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Old Saint Marys, TX in one place.
Sunny, with a high near 79. Northeast wind 7 to 13 mph.
Local Weather Overview
This forecast page for Old Saint Marys, TX 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: Nov 6, 2026 9:45 AM CST.
The active forecast window currently covers Nov 6 to Nov 12, 2026 for Old Saint Marys, TX.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 9:45 AM CST
- Forecast office
- CRP
- Source
- NOAA / NWS
Daily Outlook
This Week in Old Saint Marys
Today looks like the warmest upcoming period in Old Saint Marys at 79 degrees F.
Monday Night is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Sunday at about 23 mph NE.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 6, 2026 9:45 AM CST
- Coverage
- 8 days
- Time zone
- America/Chicago
- Forecast office
- CRP
- Radar station
- KCRP
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. Northeast wind 7 to 10 mph.
Partly sunny, with a high near 78. East northeast wind 10 to 18 mph, with gusts as high as 24 mph.
A slight chance of rain showers after midnight. Mostly cloudy, with a low around 68. East northeast wind around 22 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
A chance of showers and thunderstorms. Mostly cloudy, with a high near 71. Northeast wind around 23 mph, with gusts as high as 30 mph. Chance of precipitation is 50%.
A chance of rain showers before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 61. Northeast wind 16 to 21 mph, with gusts as high as 28 mph. Chance of precipitation is 50%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 68. North northeast wind 12 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 70%.
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 60. North northeast wind 6 to 10 mph. Chance of precipitation is 20%.
A slight chance of rain showers before noon. Mostly cloudy, with a high near 74. Northeast wind around 8 mph. Chance of precipitation is 20%.
Mostly cloudy, with a low around 63.
A slight chance of rain showers. Mostly cloudy, with a high near 76. Chance of precipitation is 20%.
A chance of rain showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Mostly sunny, with a high near 78.
Partly cloudy, with a low around 61.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Nov 6
|
Sunny
|
79°F |
7 to 13 mph
NE
|
|
Tonight
Nov 6
|
Partly Cloudy
|
68°F |
7 to 10 mph
NE
|
|
Saturday
Nov 7
|
Partly Sunny
|
78°F |
10 to 18 mph
ENE
|
|
Saturday Night
Nov 7
|
Mostly Cloudy then Slight Chance Rain Showers
|
68°F |
22 mph
ENE
|
|
Sunday
Nov 8
|
Chance Showers And Thunderstorms
|
71°F |
23 mph
NE
|
|
Sunday Night
Nov 8
|
Chance Showers And Thunderstorms
|
61°F |
16 to 21 mph
NE
|
|
Monday
Nov 9
|
Showers And Thunderstorms Likely
|
68°F |
12 to 17 mph
NNE
|
|
Monday Night
Nov 9
|
Slight Chance Showers And Thunderstorms
|
60°F |
6 to 10 mph
NNE
|
|
Tuesday
Nov 10
|
Slight Chance Rain Showers then Mostly Cloudy
|
74°F |
8 mph
NE
|
|
Tuesday Night
Nov 10
|
Mostly Cloudy
|
63°F |
5 mph
NE
|
|
Veterans Day
Nov 11
|
Slight Chance Rain Showers
|
76°F |
5 mph
NE
|
|
Wednesday Night
Nov 11
|
Chance Rain Showers
|
63°F |
2 to 6 mph
NE
|
|
Thursday
Nov 12
|
Mostly Sunny
|
78°F |
8 mph
N
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
61°F |
7 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Old Saint Marys.