Weather Johnstown long-term weather forecast

Long-term weather forecast for Johnstown for ten days.

Saturday, Jun 20

36 / 17°C

0.0 mm

9 km/h

29 °C	27 °C	8 pm
25 °C	23 °C	9 pm
23 °C	22 °C	10 pm
22 °C	21 °C	11 pm

sunrise 5:29 am
sunset 8:33 pm

HOURLY

Clear morning, later partly cloudy. High of 36 °C. Clear overnight with a low of 17 °C.

Interactive map weather Colorado, USA

GPS: 40.3369; -104.9122

altitude: 1486 m
local time:

PLACES IN THE AREA

Weather forecast Johnstown, Colorado, USA extended forecast

Time			Precip.	Wind	Pressure	Humidity	Dew	total	Fog	Low	Middle	High
Saturday 06/20/2026
12 AM 2 AM	clear	22 °C 21 °C	0.0 mm	4.0 m/s 14 km/h northeast	1010 hPa	39 %	7 °C	7 %	0%	0%	4%	2%
1 AM 3 AM	clear	20 °C 19 °C	0.0 mm	3.8 m/s 14 km/h north	1010 hPa	47 %	9 °C	0 %	0%	0%	0%	0%
2 AM 4 AM	clear	19 °C 18 °C	0.0 mm	4.5 m/s 16 km/h north	1010 hPa	58 %	10 °C	0 %	0%	0%	0%	0%
3 AM 5 AM	clear	18 °C 18 °C	0.0 mm	3.7 m/s 13 km/h north	1010 hPa	68 %	12 °C	0 %	0%	0%	0%	0%
4 AM 6 AM	clear	18 °C 19 °C	0.0 mm	3.2 m/s 12 km/h north	1010 hPa	76 %	13 °C	0 %	0%	0%	0%	0%
5 AM 7 AM	clear	17 °C 18 °C	0.0 mm	3.0 m/s 11 km/h north	1010 hPa	81 %	13 °C	0 %	0%	0%	0%	0%
6 AM 8 AM	clear	17 °C 18 °C	0.0 mm	2.7 m/s 10 km/h north	1010 hPa	84 %	14 °C	0 %	0%	0%	0%	0%
7 AM 9 AM	clear	18 °C 19 °C	0.0 mm	3.1 m/s 11 km/h north-northwest	1010 hPa	78 %	14 °C	6 %	0%	0%	6%	0%
8 AM 10 AM	partly cloudy	20 °C 21 °C	0.0 mm	2.6 m/s 9 km/h north-northwest	1009 hPa	70 %	14 °C	18 %	0%	0%	18%	0%
9 AM 11 AM	clear	22 °C 23 °C	0.0 mm	1.9 m/s 7 km/h north-northwest	1008 hPa	59 %	13 °C	1 %	0%	0%	1%	0%
10 AM 12 PM	partly cloudy	25 °C 26 °C	0.0 mm	0.8 m/s 3 km/h northeast	1007 hPa	45 %	12 °C	19 %	0%	0%	18%	5%
11 AM 1 PM	partly cloudy	27 °C 27 °C	0.0 mm	1.4 m/s 5 km/h southeast	1005 hPa	36 %	10 °C	25 %	0%	0%	15%	13%
12 PM 2 PM	cloudy	30 °C 30 °C	0.0 mm	1.8 m/s 6 km/h southeast	1003 hPa	30 %	10 °C	38 %	0%	0%	12%	33%
1 PM 3 PM	cloudy	32 °C 31 °C	0.0 mm	2.5 m/s 9 km/h east-southeast	1001 hPa	23 %	8 °C	42 %	0%	0%	25%	23%
2 PM 4 PM	cloudy	34 °C 32 °C	0.0 mm	3.0 m/s 11 km/h southeast	999 hPa	15 %	3 °C	40 %	0%	0%	16%	31%
3 PM 5 PM	partly cloudy	35 °C 33 °C	0.0 mm	2.1 m/s 8 km/h east-northeast	997 hPa	13 %	3 °C	28 %	0%	0%	5%	25%
4 PM 6 PM	partly cloudy	35 °C 33 °C	0.0 mm	2.5 m/s 9 km/h northeast	996 hPa	13 %	3 °C	27 %	0%	0%	21%	7%
5 PM 7 PM	partly cloudy	35 °C 33 °C	0.0 mm	1.7 m/s 6 km/h south-southwest	995 hPa	11 %	0 °C	28 %	0%	0%	15%	15%
6 PM 8 PM	partly cloudy	36 °C 32 °C	0.0 mm	4.4 m/s 16 km/h west-southwest	994 hPa	6 %	-5 °C	13 %	0%	0%	5%	10%
7 PM 9 PM	cloudy	31 °C 29 °C	0.0 mm	8.9 m/s 32 km/h north	996 hPa	23 %	7 °C	39 %	0%	0%	39%	0%
8 PM 10 PM	clear	29 °C 27 °C	0.0 mm	5.6 m/s 20 km/h north-northeast	997 hPa	27 %	8 °C	0 %	0%	0%	0%	0%
9 PM 11 PM	cloudy	25 °C 24 °C	0.0 mm	8.1 m/s 29 km/h northeast	1001 hPa	41 %	10 °C	41 %	0%	0%	25%	35%
10 PM 12 AM	clear	23 °C 22 °C	0.0 mm	6.9 m/s 25 km/h north-northeast	1004 hPa	45 %	10 °C	4 %	0%	0%	4%	0%
11 PM 1 AM	clear	22 °C 21 °C	0.0 mm	4.9 m/s 18 km/h northeast	1004 hPa	46 %	10 °C	0 %	0%	0%	0%	0%
Sunday 06/21/2026
12 AM 2 AM	clear	21 °C 20 °C	0.0 mm	3.5 m/s 13 km/h north-northwest	1005 hPa	51 %	10 °C	0 %	0%	0%	0%	0%
1 AM 3 AM	clear	20 °C 20 °C	0.0 mm	1.8 m/s 6 km/h north-northwest	1005 hPa	56 %	11 °C	0 %	0%	0%	0%	0%
2 AM 4 AM	clear	19 °C 19 °C	0.0 mm	1.8 m/s 6 km/h north	1005 hPa	61 %	11 °C	1 %	0%	0%	1%	0%
3 AM 5 AM	clear	18 °C 18 °C	0.0 mm	1.5 m/s 5 km/h north	1005 hPa	65 %	11 °C	8 %	0%	0%	8%	0%
4 AM 6 AM	clear	18 °C 18 °C	0.0 mm	0.4 m/s 1 km/h south-southeast	1005 hPa	67 %	11 °C	0 %	0%	0%	0%	0%
5 AM 7 AM	clear	17 °C 17 °C	0.0 mm	0.4 m/s 1 km/h southwest	1005 hPa	69 %	11 °C	0 %	0%	0%	0%	0%
6 AM 8 AM	clear	17 °C 17 °C	0.0 mm	1.1 m/s 4 km/h southwest	1005 hPa	71 %	11 °C	0 %	0%	0%	0%	0%
7 AM 9 AM	clear	19 °C 19 °C	0.0 mm	1.7 m/s 6 km/h southwest	1005 hPa	61 %	11 °C	0 %	0%	0%	0%	0%
8 AM 10 AM	clear	21 °C 21 °C	0.0 mm	1.6 m/s 6 km/h southwest	1006 hPa	51 %	10 °C	0 %	0%	0%	0%	0%
9 AM 11 AM	clear	24 °C 23 °C	0.0 mm	1.2 m/s 4 km/h east	1005 hPa	35 %	8 °C	0 %	0%	0%	0%	0%
10 AM 12 PM	clear	27 °C 25 °C	0.0 mm	1.9 m/s 7 km/h northeast	1005 hPa	24 %	4 °C	1 %	0%	0%	1%	0%
11 AM 1 PM	partly cloudy	29 °C 27 °C	0.0 mm	2.3 m/s 8 km/h east-southeast	1004 hPa	19 %	2 °C	13 %	0%	0%	13%	0%
12 PM 2 PM	light rain showers	30 °C 28 °C	0.1 mm	1.9 m/s 7 km/h east-northeast	1003 hPa	17 %	2 °C	19 %	0%	0%	12%	8%
1 PM 3 PM	light rain showers	30 °C 28 °C	0.2 mm	2.3 m/s 8 km/h north-northeast	1003 hPa	17 %	3 °C	16 %	0%	0%	3%	14%
2 PM 4 PM	partly cloudy	31 °C 29 °C	0.0 mm	2.8 m/s 10 km/h north-northwest	1002 hPa	16 %	2 °C	25 %	0%	0%	4%	21%
3 PM 5 PM	partly cloudy	32 °C 30 °C	0.0 mm	3.2 m/s 12 km/h north-northwest	1002 hPa	14 %	1 °C	19 %	0%	0%	7%	14%
4 PM 6 PM	clear	32 °C 29 °C	0.0 mm	4.5 m/s 16 km/h north	1001 hPa	11 %	-1 °C	11 %	0%	0%	4%	7%
5 PM 7 PM	clear	32 °C 29 °C	0.0 mm	3.7 m/s 13 km/h north-northeast	1001 hPa	10 %	-2 °C	10 %	0%	0%	4%	5%
6 PM 8 PM	rain showers	31 °C 28 °C	1.2 mm	3.4 m/s 12 km/h northeast	1002 hPa	11 %	-2 °C	40 %	0%	0%	22%	26%

Johnstown, Colorado, USA - information

State: Colorado, USA

GPS coordinates: 40.3369; -104.9122

Time zone: America / Denver time difference in hours with time in US is -8 hours

Population: 14 896
Altitude: 1486 m
The administrative part:

Colorado, Denver
Weld County, Greeley

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Weather Johnstown, Colorado, USA. Weather forecast Johnstown.

Johnstown - weather nearby - bigger cities

Milliken, 3.0 km
Mead, 8.5 km
Berthoud, 9.1 km
Loveland, 9.5 km
Platteville, 9.6 km
Windsor, 9.7 km
La Salle, 11 km
Evans, 12 km
Longmont, 15 km
Firestone, 16 km

Johnstown - weather nearby - the closest place

Clark, Colorado, 0.9 km
Little Thompson Dam, 1.5 km
Elwell, 1.6 km
Hardman, 2.0 km
Pulliam, 2.0 km
Hillsboro, 2.5 km
Johnstown Dam, 2.7 km
Marshall Number 2 Dam, 3.1 km
Bunyan, 3.2 km
Hartford Dam, 3.3 km

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Data source

Weather forecast for Johnstown is supplied by MET Norway Norwegian Meteorological Institute and the NRK.

Feels like

To calculate the perceived temperature, we use the Australian Apparent Temperature (AAT) model, which is designed for year-round calculations and takes air humidity into account in addition to temperature and wind speed.

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Astronomical information Johnstown

data are always in the local time

Sun and light

June 20, 2026

Sunrise:	Sunset:
5:29 am	8:33 pm
Noon:	Length of day:
1:01 pm	15:03
Start of civil twilight*:	End of civil twilight*:
4:55 am	9:07 pm
Start of nautical twilight*:	End of nautical twilight*:
4:14 am	9:48 pm
Start of astronomical twilight*:	End of astronomical twilight*:
3:24 am	10:37 pm
* What is Twilight?

Moon and moon phases

Moonrise:	Moonset:
06/20/2026 11:52 am	06/21/2026 12:35 am
Next new moon:	Next full moon:
07/14/2026	06/29/2026