National Weather Service Forecast for: Louisville CO
Issued by: National Weather Service Denver-Boulder, CO
Updated: 12:46 pm MDT Sep 12, 2026
 
Tonight

Tonight: Mostly clear, with a low around 60. Southwest wind around 5 mph becoming calm after midnight.
Mostly Clear

 Sunday

Sunday: A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 91. Calm wind becoming east southeast 5 to 8 mph in the afternoon. Chance of precipitation is 30%.
Sunny then
Chance
Showers
 Sunday
Night
Sunday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. West northwest wind 3 to 7 mph. Chance of precipitation is 30%.
Chance
Showers

 Monday

Monday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. West northwest wind 3 to 8 mph.
Partly Sunny
then Chance
Showers
 Monday
Night
Monday Night: A slight chance of showers and thunderstorms, then a chance of showers after 9pm. Mostly cloudy, with a low around 57. West wind 3 to 8 mph. Chance of precipitation is 30%.
Slight Chance
T-storms then
Chance
Showers
 Tuesday

Tuesday: A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. Chance of precipitation is 60%.
Slight Chance
Showers then
Showers
Likely
 Tuesday
Night
Tuesday Night: A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.
Chance
Showers then
Partly Cloudy
 Wednesday

Wednesday: A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Mostly Sunny
then Chance
T-storms
 Wednesday
Night
Wednesday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 56.
Chance
Showers
Lo 60 °F Hi 91 °F Lo 63 °F Hi 86 °F Lo 57 °F Hi 73 °F Lo 55 °F Hi 81 °F Lo 56 °F

 

Tonight
 
 Mostly clear, with a low around 60. Southwest wind around 5 mph becoming calm after midnight.
Sunday
 
 A slight chance of showers, then a chance of showers and thunderstorms after 3pm. Increasing clouds, with a high near 91. Calm wind becoming east southeast 5 to 8 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
 
 A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. West northwest wind 3 to 7 mph. Chance of precipitation is 30%.
Monday
 
 A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 86. West northwest wind 3 to 8 mph.
Monday Night
 
 A slight chance of showers and thunderstorms, then a chance of showers after 9pm. Mostly cloudy, with a low around 57. West wind 3 to 8 mph. Chance of precipitation is 30%.
Tuesday
 
 A slight chance of showers, then showers likely and possibly a thunderstorm after noon. Partly sunny, with a high near 73. Chance of precipitation is 60%.
Tuesday Night
 
 A 40 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 55.
Wednesday
 
 A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 81.
Wednesday Night
 
 A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 56.
Thursday
 
 A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 75.
Thursday Night
 
 A chance of showers and thunderstorms. Partly cloudy, with a low around 54.
Friday
 
 A chance of showers and thunderstorms. Mostly sunny, with a high near 78.
Friday Night
 
 A slight chance of showers. Partly cloudy, with a low around 53.
Saturday
 
 A slight chance of showers and thunderstorms. Mostly sunny, with a high near 77.

 

Forecast from NOAA-NWS for Louisville CO.