What is today's weather forecast for Johnstown, CO?

Today's forecast for Johnstown shows a low of 29 degrees Fahrenheit. Mostly clear, with a low around 29.

What is the 7-day weather forecast for Johnstown, CO?

The 7-day forecast for Johnstown shows highs from 30 to 55 degrees and lows from 10 to 29 degrees Fahrenheit. Expect precipitation on 4 days with chances of 20% or higher.

Will it rain in Johnstown, CO this week?

Yes, rain is possible in Johnstown this week. Precipitation chances: Friday (50% chance), Saturday (50% chance), Sunday (50% chance), Monday (50% chance).

How accurate is the Johnstown weather forecast?

WeatherForYou provides highly accurate Johnstown forecasts using National Weather Service data and current conditions from the nearest available weather stations, often miles closer than regional airports, for the most precise local forecasts.

Johnstown, CO Weather Forecast and Current Conditions

Current Conditions From Nearby Local Station

Switch to Metric Units

39°F
Feels Like 39°F

Humidity 51% Dew Point 23°F Wind Calm Barometer 24.91 in.

Report from a personal weather station 0.4 mi. NNW of central Johnstown
at 8:18 PM Mon, Nov 24, 2025

Point Forecast at a Glance

MonNov 24

TueNov 25

WedNov 26

ThuNov 27

FriNov 28

SatNov 29

50%

SunNov 30

50%

7-Day Temperature Trend

Week Ahead Summary

High temperatures start near 48°F, reaching 55°F before cooling to 30°F, then recovering to 30°F by week's end. Some precipitation possible with wintry mix on at least one day.

Climate Context

This week's forecast shows temperatures running 3°F below the historical average for November-December. Normal highs for this period are around 46°F with lows around 20°F.

This Date in Weather History

1950 - The temperature at Chicago, IL, dipped to 2 below zero to equal their record for the month established on the 29th in 1872. On the first of the month that year Chicago established a record high for November with a reading of 81 degrees.

Johnstown, CO 7 Day Weather Forecast Details

Monday Nov 24

Night: Mostly clear, with a low around 29. Light and variable wind becoming north 5 to 9 mph in the evening. Winds could gust as high as 15 mph.

Tuesday Nov 25

Day: Sunny, with a high near 48. Breezy, with a north wind 10 to 15 mph, with gusts as high as 24 mph.

Night: Mostly clear, with a low around 19. East wind 5 to 7 mph becoming calm in the evening.

Wednesday Nov 26

Day: Mostly sunny, with a high near 47. Calm wind becoming east around 5 mph.

Night: Partly cloudy, with a low around 23. Calm wind.

Thursday Nov 27

Day: Mostly sunny, with a high near 49.

Night: Partly cloudy, with a low around 25.

Friday Nov 28

Day: Mostly sunny, with a high near 55.

Night: A chance of rain and snow showers, mainly after 11pm. Mostly cloudy, with a low around 24.

Saturday Nov 29

Day: A slight chance of snow showers. Mostly cloudy, with a high near 38.

Night: A chance of snow showers. Mostly cloudy, with a low around 20.

Sunday Nov 30

Day: A chance of snow showers. Mostly cloudy, with a high near 30.

Night: A chance of snow showers. Mostly cloudy, with a low around 10.

Monday Dec 1

Day: A slight chance of snow showers. Partly sunny, with a high near 33.

About Johnstown, CO

Johnstown is a home rule municipality in Weld and Larimer counties in the U.S. state of Colorado. The population was 17,303 at the 2020 United States census.

Content from Wikipedia, licensed under CC BY-SA 3.0.

How We Provide Better Local Weather

Current conditions: We use the nearest available station to your location - including professional MESONET/MADIS and local weather stations - often miles closer than regional airports.

Forecasts: National Weather Service point forecasts predict for your specific area, not broad regional zones, making them far more relevant to your location.

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