Jeffco, CO 14 Day Weather
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Jeffco, CO Weather Forecast


Jeffco, CO Weather Forecast Dated: 850 PM Thu Sep 17 2026
Expect a very warm period with a mix of sun and clouds and occasional showers over the coming period. comfortable humidity and no major pressure swings will dominate.
Thursday, September 17, 2026
Mid-Morning
71°F 22°C
Cloudy
Mid-Afternoon
79°F 26°C
Cloudy
Early-Evening
74°F 23°C
Overcast
Pleasant near 79°F 26°C, cloudy through the afternoon, turning overcast this evening, with steady humidity and barometric pressure falling. Winds turning from the N to the NE at 9 mph 14 km/h.
Friday, September 18, 2026
Mid-Morning
73°F 23°C
Overcast
Mid-Afternoon
83°F 28°C
Light Showers
Early-Evening
67°F 19°C
Light Showers
Balmy with temperatures reaching 83°F 28°C, clouds and showers taking over for the afternoon and evening, with increasing humidity and steady pressure.
Saturday, September 19, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
65°F 18°C
Light Showers
Early-Evening
62°F 17°C
Light Showers
Comfortable at 65°F 18°C, dry early, with showers continuing through afternoon and evening, with increasing humidity and steady pressure. Winds switching from the NNE to the WSW at 4 mph 6 km/h.
Sunday, September 20, 2026
Mid-Morning
63°F 17°C
Sunny
Mid-Afternoon
74°F 23°C
Sunny
Early-Evening
66°F 19°C
Nearby Thunderstorms
Mild temperatures up to 74°F 23°C, periods of heavy thunderstorms, with lower humidity and steady pressure. Winds ENE at 12 mph 19 km/h.
Monday, September 21, 2026
Mid-Morning
61°F 16°C
Sunny
Mid-Afternoon
79°F 26°C
Sunny
Early-Evening
73°F 23°C
Sunny
Mild with a high of 79°F 26°C, sunny throughout the day, with lower humidity and barometric pressure falling. Winds swinging from the ENE to the SSE at 8 mph 13 km/h.
Tuesday, September 22, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
79°F 26°C
Nearby Thunderstorms
Early-Evening
67°F 19°C
Overcast
Pleasant near 79°F 26°C, heavy thunderstorms conditions at times, with lower humidity and steady pressure. Winds building from NNW at 3 mph 5 km/h to SE at 12 mph 19 km/h.
Wednesday, September 23, 2026
Mid-Morning
64°F 18°C
Sunny
Mid-Afternoon
79°F 26°C
Partly Cloudy
Early-Evening
72°F 22°C
Sunny
Comfortable with temperatures reaching 79°F 26°C, sunny in the morning, cloudy in the afternoon, and sunny this evening, with lower humidity and steady pressure. Winds turning from the SSE to the S at 8 mph 12 km/h.
Thursday, September 24, 2026
Mid-Morning
66°F 19°C
Overcast
Mid-Afternoon
79°F 26°C
Overcast
Early-Evening
74°F 24°C
Overcast
Enjoyable around 79°F 26°C, overcast throughout the day, with steady humidity and barometric pressure falling. Winds picking up from NE at 2 mph 3 km/h to SE at 13 mph 21 km/h.
Friday, September 25, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
81°F 27°C
Overcast
Early-Evening
76°F 24°C
Overcast
Warm temperatures up to 81°F 27°C, overcast through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds moving from the NW to the WSW at 7 mph 11 km/h.
Saturday, September 26, 2026
Mid-Morning
71°F 22°C
Partly Cloudy
Mid-Afternoon
85°F 30°C
Sunny
Early-Evening
71°F 22°C
Overcast
Very warm with a high of 85°F 30°C, partly cloudy in the morning, sunny in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds increasing from the WSW at 3 mph 5 km/h to SSE at 15 mph 23 km/h.
Sunday, September 27, 2026
Mid-Morning
69°F 20°C
Sunny
Mid-Afternoon
86°F 30°C
Overcast
Early-Evening
77°F 25°C
Partly Cloudy
Warm and summery near 86°F 30°C, sunny in the morning, overcast in the afternoon, and partly cloudy this evening, with lower humidity and barometric pressure falling. Winds shifting from the WNW to the SSW at 7 mph 11 km/h.
Monday, September 28, 2026
Mid-Morning
71°F 22°C
Sunny
Mid-Afternoon
87°F 30°C
Cloudy
Early-Evening
78°F 25°C
Sunny
Balmy with temperatures reaching 87°F 30°C, sunny in the morning, becoming cloudy through the afternoon and evening, with steady humidity and steady pressure. Winds turning from the SW to the SE at 6 mph 9 km/h.
Tuesday, September 29, 2026
Mid-Morning
61°F 16°C
Partly Cloudy
Mid-Afternoon
78°F 25°C
Nearby Thunderstorms
Early-Evening
69°F 21°C
Nearby Thunderstorms
Enjoyable around 78°F 25°C, periods of heavy thunderstorms, with lower humidity and steady pressure.
Wednesday, September 30, 2026
Mid-Morning
61°F 16°C
Partly Cloudy
Mid-Afternoon
80°F 26°C
Sunny
Early-Evening
77°F 25°C
Partly Cloudy
Warm temperatures up to 80°F 26°C, partly cloudy through the afternoon, turning cloudy this evening, with lower humidity and barometric pressure falling. Winds switching from the NNW to the S at 9 mph 14 km/h.
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