Hilltop Weather Forecast

Today 18 Sep
- 75
- 91
Slight Chance Thunderstorms
Sat 19 Sep
- 75
- 97
Hot
Sun 20 Sep
- 76
- 99
Hot
Mon 21 Sep
- 76
- 99
Hot
Tue 22 Sep
- 76
- 98
Slight Chance Thunderstorms
Wed 23 Sep
- 76
- 98
Hot
Thu 24 Sep
- 75
- 97
Hot

Today 18 Sep
1. 12 am
2. 1 am
3. 2 am
4. 3 am
5. 4 am
6. 5 am
7. 6 am
8. 7 am
9. 8 am
10. 9 am
11. 10 am
12. 11 am
13. 12 pm
14. 1 pm
15. 2 pm
16. 3 pm
17. 4 pm
18. 5 pm
19. 6 pm
20. 7 pm
21. 8 pm
22. 9 pm
23. 10 pm
24. 11 pm
Sat 19 Sep
1. 12 am
2. 1 am
3. 2 am
4. 3 am
5. 4 am
6. 5 am
7. 6 am
8. 7 am
9. 8 am
10. 9 am
11. 10 am
12. 11 am
13. 12 pm
14. 1 pm
15. 2 pm
16. 3 pm
17. 4 pm
18. 5 pm
19. 6 pm
20. 7 pm
21. 8 pm
22. 9 pm
23. 10 pm
24. 11 pm
Sun 20 Sep
1. 12 am
2. 1 am
3. 2 am
4. 3 am
5. 4 am
6. 5 am
7. 6 am
8. 7 am
9. 10 am
10. 1 pm
11. 4 pm
12. 7 pm
13. 10 pm
Mon 21 Sep
1. 1 am
2. 4 am
3. 7 am
4. 10 am
5. 1 pm
6. 4 pm
7. 7 pm
Tue 22 Sep
1. 1 am
2. 7 am
3. 1 pm
4. 7 pm
Wed 23 Sep
1. 1 am
2. 7 am
3. 1 pm
4. 7 pm
Thu 24 Sep
1. 1 am
2. 7 am
3. 1 pm
4. 7 pm

Today 18 Sep Frio

Partly cloudy in the Morning, then mostly sunny with a slight chance of Showers and Thunderstorms in the afternoon. Highs in the mid 90s.

Tonight 18 Sep Frio

Partly cloudy. Lows in the mid 70s. Southeast Winds 5 to 10 Mph.

Hilltop Temperature Statistics

September Temperature

Cotulla, Cotulla-La Salle County Airport (16.2 miles)

Lowest 26 January, 2026
18.6 °F
Average 2026
78.5 °F
Highest 22 July, 2026
108.6 °F
Lowest 3 August, 2026
73.7 °F
Average August
90.8 °F
Highest 12 August, 2026
106.6 °F
Lowest 6 September, 2026
74.6 °F
Average September
91.1 °F
Highest 3 September, 2026
106.6 °F

Climate (2021–2026)

Cotulla, Cotulla-La Salle County Airport (16.2 miles)

Take a look at our website widgetsAvailable free! Find Out More

Average Low 2021–2026
64.7 °F
Average 2021–2026
76.4 °F
Average High 2021–2026
88.6 °F

Get WillyWeather+ to remove ads

Hilltop Weather Forecast

Today 18 Sep Frio

Tonight 18 Sep Frio

Sat 19 Sep Frio

Sat 19 Sep Frio

Sun 20 Sep Frio

Sun 20 Sep Frio

Mon 21 Sep Frio

Mon 21 Sep Frio

Tue 22 Sep Frio

Tue 22 Sep Frio

Wed 23 Sep Frio

Wed 23 Sep Frio

Thu 24 Sep Frio

Thu 24 Sep Frio

Temperature Forecast NOAA

Temperature Real-Time

Laughlin AFB Radar

National Satellite

National Synoptic

Hilltop Temperature Statistics

September Temperature

Cotulla, Cotulla-La Salle County Airport (16.2 miles)

Lowest 26 January, 2026

Average 2026

Highest 22 July, 2026

Lowest 3 August, 2026

Average August

Highest 12 August, 2026

Lowest 6 September, 2026

Average September

Highest 3 September, 2026

Climate (2021–2026)

Cotulla, Cotulla-La Salle County Airport (16.2 miles)

Average Low 2021–2026

Average 2021–2026

Average High 2021–2026