National Weather Service Forecast for: Danbury CT
Issued by: National Weather Service New York, NY
Updated: 9:50 pm EST Dec 17, 2025
 
Overnight

Overnight: Mostly clear, with a low around 21. Calm wind.
Mostly Clear

 Thursday

Thursday: Mostly sunny, with a high near 50. Wind chill values between 20 and 30 early. Calm wind becoming south 5 to 9 mph in the afternoon.
Mostly Sunny

 Thursday
Night
Thursday Night: Rain, with thunderstorms also possible after 4am. Temperature rising to around 53 by 5am. Breezy, with a south wind 6 to 11 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Rain Likely
then Rain and
Breezy
 Friday

Friday: Rain before 4pm, then a chance of rain and snow. Some thunder is also possible. Temperature rising to near 54 by 8am, then falling to around 40 during the remainder of the day. Breezy, with a south wind 15 to 24 mph becoming west in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Rain and
Breezy then
Rain/Snow
 Friday
Night
Friday Night: A 30 percent chance of snow before 7pm. Partly cloudy, with a low around 24. West wind 10 to 17 mph, with gusts as high as 38 mph.
Chance Snow
then Partly
Cloudy
 Saturday

Saturday: Increasing clouds, with a high near 38.
Increasing
Clouds
 Saturday
Night
Saturday Night: Mostly cloudy, with a low around 31.
Mostly Cloudy

 Sunday

Sunday: Mostly sunny, with a high near 44.
Mostly Sunny

 Sunday
Night
Sunday Night: Partly cloudy, with a low around 22.
Partly Cloudy
Lo 21 °F Hi 50 °F Lo 44 °F⇑ Hi 54 °F⇓ Lo 24 °F Hi 38 °F Lo 31 °F Hi 44 °F Lo 22 °F

Wind Advisory
Hazardous Weather Outlook
 

Overnight
 
 Mostly clear, with a low around 21. Calm wind.
Thursday
 
 Mostly sunny, with a high near 50. Wind chill values between 20 and 30 early. Calm wind becoming south 5 to 9 mph in the afternoon.
Thursday Night
 
 Rain, with thunderstorms also possible after 4am. Temperature rising to around 53 by 5am. Breezy, with a south wind 6 to 11 mph increasing to 15 to 20 mph after midnight. Winds could gust as high as 33 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Friday
 
 Rain before 4pm, then a chance of rain and snow. Some thunder is also possible. Temperature rising to near 54 by 8am, then falling to around 40 during the remainder of the day. Breezy, with a south wind 15 to 24 mph becoming west in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Friday Night
 
 A 30 percent chance of snow before 7pm. Partly cloudy, with a low around 24. West wind 10 to 17 mph, with gusts as high as 38 mph.
Saturday
 
 Increasing clouds, with a high near 38.
Saturday Night
 
 Mostly cloudy, with a low around 31.
Sunday
 
 Mostly sunny, with a high near 44.
Sunday Night
 
 Partly cloudy, with a low around 22.
Monday
 
 Sunny, with a high near 33.
Monday Night
 
 Partly cloudy, with a low around 21.
Tuesday
 
 A chance of rain and snow. Mostly cloudy, with a high near 38. Chance of precipitation is 30%.
Tuesday Night
 
 A 30 percent chance of rain. Mostly cloudy, with a low around 28.
Wednesday
 
 Mostly sunny, with a high near 39.

 

Forecast from NOAA-NWS for Danbury CT.