Weather Tomorrow

Weather Tomorrow for ZIP 80304

Boulder, CO · View full Boulder forecast

Saturday, September 19, 2026

75°Low 55°FColdHot
Thunderstorms

Precip chance

70%

Wind

1-3 mph

Humidity

64%

Feels like

73–57°F

Rain forecast

Rain likely starts around 6 PM and may continue until 5 AM. Peak chance: 70% around 6 PM.

Data source: National Weather Service (NOAA) · Updated just now

Tomorrow by Hour

55°Temperature trend75°
TimeTempConditionRain %Wind
6 AM☽62°FPartly Cloudy
1%
3 mph W
7 AM☽60°FPartly Cloudy
1%
2 mph W
8 AM☽60°FPartly Cloudy
1%
2 mph NW
9 AM☽58°FPartly Cloudy
1%
2 mph NW
10 AM☽55°FPartly Cloudy
1%
3 mph NW
11 AM☽55°FPartly Cloudy
1%
2 mph WNW
12 PM55°FSunny
2%
1 mph W
1 PM55°FMostly Sunny
2%
1 mph W
2 PM58°FMostly Sunny
2%
1 mph WSW
3 PM61°FMostly Sunny
2%
1 mph SSW
4 PM64°FSunny
2%
1 mph SE
5 PM67°FSunny
2%
2 mph ESE
6 PM69°FShowers And Thunderstorms Likely
70%
2 mph E
7 PM71°FShowers And Thunderstorms Likely
70%
3 mph E
8 PM71°FShowers And Thunderstorms Likely
70%
3 mph E
9 PM72°FChance Showers And Thunderstorms
48%
3 mph SSW
10 PM75°FChance Showers And Thunderstorms
48%
3 mph N
11 PM72°FChance Showers And Thunderstorms
48%
3 mph E
12 AM☽71°FShowers And Thunderstorms Likely
70%
3 mph NE
1 AM☽69°FShowers And Thunderstorms Likely
70%
2 mph ENE
2 AM☽66°FShowers And Thunderstorms Likely
70%
2 mph N
3 AM☽63°FRain Showers Likely
70%
2 mph WNW
4 AM☽62°FRain Showers Likely
70%
2 mph WNW
5 AM☽61°FRain Showers Likely
70%
1 mph W

Precipitation Timeline

100%
50%
70%
6a12p6p12a
<20%20-50%50-70%>70%

What to Wear Tomorrow

Warm and comfortable — dress light

Clothing

  • • T-shirt or light blouse
  • • Shorts or light pants

Footwear

Comfortable shoes or sandals

Accessories

  • • Umbrella

Conditions

High: 75°F

Low: 55°F

Wind: 1-3 mph

Rain: 70%

Rain expected around 6 PM — carry an umbrella.

Best Time to Be Outside Tomorrow

4 PM – 5 PM95

Excellent conditions for outdoor activities (dry, comfortable temp, light wind, daylight)

6a12p6p12a