Weather forecast for tomorrowSan Juan, TX
Weather forecast for tomorrow
Sunday Oct 18, 2026
- 79°F
- 64°F
Mostly Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 9mphN 351°
- Humidity: 43%
- UV index: 7
- Sunrise: 7:33 am CDT
- Sunset: 7:02 pm CDT
- details ▼
Tomorrow, on Sunday, October 18, intermittent cloud layers may allow brief light, but overall it stays overcast.
Expected temperature values will span from a warm 78.8°F down to a comfortable 64.4°F.
It will be colder, as the maximum temperature reflects November's norm of 77.7°F instead of October's.
Sunrise will be at 7:33 am and sunset at 7:02 pm; tomorrow's daylight will last for 11h and 29min.
Expected temperature values will span from a warm 78.8°F down to a comfortable 64.4°F.
It will be colder, as the maximum temperature reflects November's norm of 77.7°F instead of October's.
Sunrise will be at 7:33 am and sunset at 7:02 pm; tomorrow's daylight will last for 11h and 29min.
Hourly overview
Hourly temperatures
Warmest period: 3 pm - 6 pm 77°C.
Coldest hour: 6 am 57°C.
Coldest hour: 6 am 57°C.
Chance of precipitation
Highest chance: 3 pm 1%.
Hourly weather forecast
- 12 am
- 61°F
- Feels like:61°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNNW 345°
- Humidity: 48%
- Pressure: 30.33"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 2 am
- 59°F
- Feels like:59°F
Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 6mphNNW 338°
- Humidity: 48%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 4 am
- 59°F
- Feels like:57°F
Mostly Clear
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNNW 335°
- Humidity: 50%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 6 am
- 57°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNNW 336°
- Humidity: 52%
- Pressure: 30.27"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunrise: 7:33 am
- 8 am
- 57°F
- Feels like:57°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNNW 336°
- Humidity: 54%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 am
- 64°F
- Feels like:64°F
Partly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNNW 338°
- Humidity: 47%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 3
- details ▼
- 12 pm
- 72°F
- Feels like:72°F
Mostly Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNNW 348°
- Humidity: 40%
- Pressure: 30.3"Hg
- Visibility: 10mi
- UV index: 6
- details ▼
- 2 pm
- 77°F
- Feels like:77°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 9mphNNW 346°
- Humidity: 37%
- Pressure: 30.24"Hg
- Visibility: 10mi
- UV index: 5
- details ▼
- 4 pm
- 77°F
- Feels like:77°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphN 6°
- Humidity: 37%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 2
- details ▼
- 6 pm
- 77°F
- Feels like:77°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 8mphNNE 34°
- Humidity: 41%
- Pressure: 30.15"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Sunset: 7:02 pm
- 8 pm
- 73°F
- Feels like:73°F
Cloudy
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 7mphNE 49°
- Humidity: 52%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
- 10 pm
- 70°F
- Feels like:70°F
Cloudy
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 5mphNE 43°
- Humidity: 61%
- Pressure: 30.18"Hg
- Visibility: 10mi
- UV index: 0
- details ▼
Tomorrow, on Sunday, a combination of cloudy and clear weather is predicted.
The temperature will be between the lowest temperature of 57.2°F and the highest temperature of 77°F. The warmest part of the day will be from 2 pm to 6 pm.
Tomorrow, the high will reflect a pattern closer to November's 77.7°F than October's. Tomorrow, the overnight low is also more similar to November's usual minimum of 61.9°F than October's 70.7°F.
The temperature will be between the lowest temperature of 57.2°F and the highest temperature of 77°F. The warmest part of the day will be from 2 pm to 6 pm.
Tomorrow, the high will reflect a pattern closer to November's 77.7°F than October's. Tomorrow, the overnight low is also more similar to November's usual minimum of 61.9°F than October's 70.7°F.
Updated: Oct 17, 2026 @ 15:32:29 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
On Sunday, in San Juan, intermittent cloud layers may allow brief light, but overall it stays overcast.
Tomorrow, the maximum temperature will be 78.8°F, while the minimum temperature will be 64.4°F.
Tomorrow, the highest temperature will be a couple of degrees lower than the average maximum temperature in October. The lowest temperature will be also moderately lower than the average low of 70.7°F.
Tomorrow, the highest temperature will be a couple of degrees lower than the average maximum temperature in October. The lowest temperature will be also moderately lower than the average low of 70.7°F.
On Sunday, in San Juan, sunrise will be at 7:33 am and sunset at 7:02 pm (CDT).
In San Juan, Texas, the length of the day tomorrow will be 11h and 29min.
