Newcastle, OK Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Newcastle Weather Forecast
| TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY |
| Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Chance of Showers | Chance of Showers | Partly Cloudy | Mostly Sunny | Mostly Clear | Sunny | Mostly Clear | Sunny |
| Lo: 69°FLo: 21°C | Hi: 80°FHi: 27°C | Lo: 65°FLo: 18°C | Hi: 71°FHi: 22°C | Lo: 60°FLo: 16°C | Hi: 75°FHi: 24°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 55°FLo: 13°C | Hi: 81°FHi: 27°C |
| POP: 100% | POP: 50% | POP: 50% | POP: 50% | POP: 20% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 735 PM CDT Wed Sep 30 2026 

Newcastle Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Newcastle Weather Map
Newcastle Quick Facts
Newcastle Forecast Discussion
Meteorlogic Glosserator
Instant definitions for any meteorological term.
Instant definitions for any meteorological term.
Issued: 131 AM CDT Thu Oct 1 2026
Key Messages
Updated at 129 AM CDT Thu Oct 1 2026- Periods of heavy rain are expected from this afternoon through at least Thursday morning. Flash flooding is possible in southern Oklahoma and western north Texas.
- Chance of severe storms this afternoon and evening.
- Cooler temperatures heading into the weekend.
Aviation
... (06Z TAFS) Issued at 1217 AM CDT Thu Oct 1 2026
A plethora of aviation challenges will occur in the next 24 hours. In the immediate term, multiple squall lines for moving eastward ...
Weather World