Cullum Lake, TX Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Cullum Lake Weather Forecast
| TODAY | TONIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT |
| Partly Cloudy | Clearing | Mostly Sunny | Partly Cloudy | Partly Cloudy | Mostly Clear | Mostly Clear | Clear | Clearing | Clear | Clearing | Mostly Clear |
| Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 99°FHi: 37°C | Lo: 71°FLo: 22°C | Hi: 95°FHi: 35°C | Hi: 95°FHi: 35°C Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C Lo: 70°FLo: 21°C | Lo: 70°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 69°FLo: 21°C | Hi: 95°FHi: 35°C | Lo: 70°FLo: 21°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 401 AM CDT Fri Sep 11 2026 

Cullum Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Cullum Lake Weather Map
Cullum Lake Quick Facts
Cullum Lake Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 542 AM CDT Fri Sep 11 2026
Key Messages
Updated at 537 AM CDT Fri Sep 11 2026- Low rain chances today over the coastal plains, Hill Country, southern Edwards Plateau and portions of the I-35 corridor.
- Temperatures remain above normal through the forecast period, with continued concerns for maximum temperatures and peak heat index values near Heat Advisory levels this weekend.
- Most areas remain dry into next week, except for some low rain chances over the coastal plains.
Aviation
... (12Z TAFS) Issued at 537 AM CDT Fri Sep 11 ...
Weather World