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Newcastle, OK Weather Forecast


Newcastle, OK Weather Forecast Dated: 549 PM Fri Sep 18 2026
Expect a very warm period with a mix of sun and clouds and frequent chances of rain over the coming period. moderate humidity and no major pressure swings will dominate.
Friday, September 18, 2026
Mid-Morning
81°F 27°C
Sunny
Mid-Afternoon
97°F 36°C
Sunny
Early-Evening
93°F 34°C
Sunny
Very hot with temperatures reaching 97°F 36°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds turning from the SSW to the S at 12 mph 19 km/h. Gusts up to 22 mph 35 km/h.
Saturday, September 19, 2026
Mid-Morning
80°F 27°C
Sunny
Mid-Afternoon
99°F 37°C
Sunny
Early-Evening
94°F 35°C
Overcast
Hot and sweltering around 99°F 37°C, sunny through the afternoon, turning overcast this evening, with lower humidity and barometric pressure falling. Winds switching from the SSW to the S at 17 mph 27 km/h. Gusts up to 30 mph 47 km/h.
Sunday, September 20, 2026
Mid-Morning
79°F 26°C
Sunny
Mid-Afternoon
97°F 36°C
Nearby Thunderstorms
Early-Evening
83°F 28°C
Sunny
Sizzling hot with 97°F 36°C, heavy thunderstorms conditions at times, with increasing humidity and steady pressure. Winds moving from the SSW to the SSE at 16 mph 26 km/h. Gusts up to 26 mph 43 km/h.
Monday, September 21, 2026
Mid-Morning
70°F 21°C
Sunny
Mid-Afternoon
85°F 29°C
Overcast
Early-Evening
80°F 27°C
Sunny
Warm temperatures up to 85°F 29°C, sunny in the morning, overcast in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds swinging from the ENE to the NE at 13 mph 21 km/h. Gusts up to 23 mph 37 km/h.
Tuesday, September 22, 2026
Mid-Morning
65°F 18°C
Light Showers
Mid-Afternoon
84°F 29°C
Overcast
Early-Evening
79°F 26°C
Cloudy
Very warm with a high of 84°F 29°C, scattered morning showers before drying out later, with lower humidity and steady pressure. Winds blowing from the NE at 10 mph 15 km/h. Gusts up to 20 mph 32 km/h.
Wednesday, September 23, 2026
Mid-Morning
70°F 21°C
Scattered Showers
Mid-Afternoon
86°F 30°C
Sunny
Early-Evening
82°F 28°C
Cloudy
Warm and summery near 86°F 30°C, locally heavy downpours at times, with lower humidity and steady pressure. Winds E at 7 mph 12 km/h. Gusts up to 21 mph 33 km/h.
Thursday, September 24, 2026
Mid-Morning
75°F 24°C
Scattered Showers
Mid-Afternoon
86°F 30°C
Scattered Showers
Early-Evening
83°F 28°C
Cloudy
Balmy with temperatures reaching 86°F 30°C, periods of heavy rain and gusty conditions, with steady humidity and steady pressure. Winds switching from the ESE to the W at 10 mph 16 km/h.
Friday, September 25, 2026
Mid-Morning
70°F 21°C
Scattered Showers
Mid-Afternoon
72°F 22°C
Scattered Showers
Early-Evening
73°F 23°C
Scattered Showers
Enjoyable around 72°F 22°C, scattered downpours possible, with lower humidity and steady pressure.
Saturday, September 26, 2026
Mid-Morning
68°F 20°C
Light Showers
Mid-Afternoon
80°F 26°C
Scattered Showers
Early-Evening
85°F 30°C
Sunny
Warm temperatures up to 80°F 26°C, locally heavy downpours at times, with lower humidity and barometric pressure falling. Winds blowing from the S at 10 mph 17 km/h.
Sunday, September 27, 2026
Mid-Morning
76°F 24°C
Sunny
Mid-Afternoon
91°F 33°C
Sunny
Early-Evening
90°F 32°C
Sunny
Very hot with a high of 91°F 33°C, sunny through the afternoon, turning cloudy this evening, with steady humidity and barometric pressure falling. Winds swinging from the S to the SSE at 14 mph 21 km/h. Gusts up to 24 mph 39 km/h.
Monday, September 28, 2026
Mid-Morning
78°F 26°C
Overcast
Mid-Afternoon
93°F 34°C
Overcast
Early-Evening
92°F 33°C
Sunny
Very hot with temperatures reaching 93°F 34°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure. Winds shifting from the S to the SSE at 13 mph 20 km/h. Gusts up to 24 mph 38 km/h.
Tuesday, September 29, 2026
Mid-Morning
79°F 26°C
Partly Cloudy
Mid-Afternoon
94°F 35°C
Sunny
Early-Evening
75°F 24°C
Cloudy
Hot and sweltering around 94°F 35°C, cloudy through the afternoon, turning overcast this evening, with increasing humidity and steady pressure. Winds turning from the SSE to the ESE at 16 mph 26 km/h. Gusts up to 26 mph 41 km/h.
Wednesday, September 30, 2026
Mid-Morning
70°F 21°C
Overcast
Mid-Afternoon
83°F 28°C
Overcast
Early-Evening
71°F 22°C
Overcast
Quite warm around 83°F 28°C, cloudy in the morning, becoming overcast through the afternoon and evening, with steady humidity and steady pressure. Winds switching from the ESE to the SE at 16 mph 26 km/h. Gusts up to 25 mph 39 km/h.
Thursday, October 1, 2026
Mid-Morning
60°F 15°C
Overcast
Mid-Afternoon
69°F 21°C
Overcast
Early-Evening
64°F 18°C
Overcast
Mild temperatures up to 69°F 21°C, overcast throughout the day, with lower humidity and steady pressure. Winds out of the NNE at 21 mph 33 km/h. Gusts up to 23 mph 37 km/h.
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