Niwot, CO Weather Forecast

Local 7-day forecast

87°

Mostly Sunny then Chance Showers And Thunderstorms

Track current conditions, temperature changes, wind, and the full daily outlook for Niwot, CO in one place.

Tuesday, August 25, 2026

Wind: 2 to 7 mph ENE

Today

A chance of showers and thunderstorms after 1pm. Mostly sunny. High near 87, with temperatures falling to around 80 in the afternoon. East northeast wind 2 to 7 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.

Local 7-day forecast

Local Weather Overview

This forecast page for Niwot, CO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 25, 2026 10:04 AM MDT.

The active forecast window currently covers Aug 25 to Aug 31, 2026 for Niwot, CO.

Page Snapshot

Page focus: city weather
Forecast window: Aug 25 to Aug 31, 2026
Latest sync: Aug 25, 2026 10:04 AM MDT
Forecast office: BOU
Source: NOAA / NWS

Next High

87°F

Today

Next Low

58°F

Tonight

Rain Outlook

Periods mentioning precipitation

Windiest

5 to 8 mph

Saturday

Daily Outlook

Today

Aug 25

Mostly Sunny then Chance Showers And Thunderstorms

87 °F

/ 58°F

Wind 2 to 7 mph

Wed

Aug 26

Mostly Sunny then Chance Showers And Thunderstorms

84 °F

/ 57°F

Wind 2 to 6 mph

Thu

Aug 27

Mostly Sunny then Chance Showers And Thunderstorms

87 °F

/ 59°F

Wind 0 to 3 mph

Fri

Aug 28

Mostly Sunny

94 °F

/ 60°F

Wind 2 to 6 mph

Sat

Aug 29

Mostly Sunny

95 °F

/ 61°F

Wind 5 to 8 mph

Sun

Aug 30

Partly Sunny then Chance Showers And Thunderstorms

90 °F

/ 58°F

Wind 3 to 7 mph

Mon

Aug 31

Partly Sunny then Chance Showers And Thunderstorms

87 °F

/ 57°F

Wind 2 to 6 mph

This Week in Niwot

Saturday looks like the warmest upcoming period in Niwot at 95 degrees F.

Wednesday Night is the coolest period ahead with temperatures near 57 degrees F.

The strongest winds are forecast for Saturday at about 5 to 8 mph W.

Precipitation is mentioned in 10 upcoming forecast periods.

Forecast Details

Last updated: Aug 25, 2026 10:04 AM MDT
Coverage: 8 days
Time zone: America/Denver
Forecast office: BOU
Radar station: KFTG

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tonight

Aug 25

58°F

Chance Showers And Thunderstorms then Partly Cloudy

3 to 7 mph NW

A chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 58. Northwest wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

Wednesday

Aug 26

84°F

Mostly Sunny then Chance Showers And Thunderstorms

2 to 6 mph NE

A chance of showers and thunderstorms after 2pm. Mostly sunny. High near 84, with temperatures falling to around 81 in the afternoon. Northeast wind 2 to 6 mph. Chance of precipitation is 50%.

Wednesday Night

Aug 26

57°F

Chance Showers And Thunderstorms then Partly Cloudy

0 to 5 mph WNW

A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. West northwest wind 0 to 5 mph. Chance of precipitation is 40%.

Thursday

Aug 27

87°F

Mostly Sunny then Chance Showers And Thunderstorms

0 to 3 mph ENE

A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. East northeast wind 0 to 3 mph. Chance of precipitation is 30%.

Thursday Night

Aug 27

59°F

Partly Cloudy

5 mph SSW

Partly cloudy, with a low around 59.

Friday

Aug 28

94°F

Mostly Sunny

2 to 6 mph NNW

Mostly sunny, with a high near 94.

Friday Night

Aug 28

60°F

Mostly Cloudy

6 mph WSW

Mostly cloudy, with a low around 60.

Saturday

Aug 29

95°F

Mostly Sunny

5 to 8 mph W

Mostly sunny, with a high near 95.

Saturday Night

Aug 29

61°F

Chance Showers And Thunderstorms then Mostly Cloudy

3 to 7 mph W

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 61.

Sunday

Aug 30

90°F

Partly Sunny then Chance Showers And Thunderstorms

3 to 7 mph SSW

A chance of showers and thunderstorms after noon. Partly sunny, with a high near 90.

Sunday Night

Aug 30

58°F

Chance Showers And Thunderstorms then Mostly Cloudy

2 to 7 mph WSW

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58.

Monday

Aug 31

87°F

Partly Sunny then Chance Showers And Thunderstorms

2 to 6 mph ESE

A chance of showers and thunderstorms after noon. Partly sunny, with a high near 87.

Monday Night

Aug 31

57°F

Chance Showers And Thunderstorms then Mostly Cloudy

2 to 6 mph W

A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 57.

Detailed Forecast

Period	Conditions	Temp	Wind	Details
Today Aug 25	Mostly Sunny then Chance Showers And Thunderstorms	87°F	2 to 7 mph ENE	A chance of showers and thunderstorms after 1pm. Mostly sunny. High near 87, with temperatures falling to around 80 in t...
Tonight Aug 25	Chance Showers And Thunderstorms then Partly Cloudy	58°F	3 to 7 mph NW	A chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 58. Northwest wind 3 to 7 mph. Chance...
Wednesday Aug 26	Mostly Sunny then Chance Showers And Thunderstorms	84°F	2 to 6 mph NE	A chance of showers and thunderstorms after 2pm. Mostly sunny. High near 84, with temperatures falling to around 81 in t...
Wednesday Night Aug 26	Chance Showers And Thunderstorms then Partly Cloudy	57°F	0 to 5 mph WNW	A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 57. West northwest wind 0 to 5 m...
Thursday Aug 27	Mostly Sunny then Chance Showers And Thunderstorms	87°F	0 to 3 mph ENE	A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 87. East northeast wind 0 to 3 mph. Cha...
Thursday Night Aug 27	Partly Cloudy	59°F	5 mph SSW	Partly cloudy, with a low around 59.
Friday Aug 28	Mostly Sunny	94°F	2 to 6 mph NNW	Mostly sunny, with a high near 94.
Friday Night Aug 28	Mostly Cloudy	60°F	6 mph WSW	Mostly cloudy, with a low around 60.
Saturday Aug 29	Mostly Sunny	95°F	5 to 8 mph W	Mostly sunny, with a high near 95.
Saturday Night Aug 29	Chance Showers And Thunderstorms then Mostly Cloudy	61°F	3 to 7 mph W	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 61.
Sunday Aug 30	Partly Sunny then Chance Showers And Thunderstorms	90°F	3 to 7 mph SSW	A chance of showers and thunderstorms after noon. Partly sunny, with a high near 90.
Sunday Night Aug 30	Chance Showers And Thunderstorms then Mostly Cloudy	58°F	2 to 7 mph WSW	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 58.
Monday Aug 31	Partly Sunny then Chance Showers And Thunderstorms	87°F	2 to 6 mph ESE	A chance of showers and thunderstorms after noon. Partly sunny, with a high near 87.
Monday Night Aug 31	Chance Showers And Thunderstorms then Mostly Cloudy	57°F	2 to 6 mph W	A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 57.

Nearby Forecasts

Explore weather pages for nearby cities and major places around Niwot.

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Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.