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Plan your week in Johnson County with our detailed 7-Day Weather Forecast. Access reliable daily temperature highs and lows, rain chances, and weekly weather pattern summaries.

Johnson County 7-Day Weather Forecast

Sunday, Oct 25, 2026

Nighttime
53°F

Sunny / Clear

Feels like 53°F

Humidity

74%

Wind Speed

4.9 mph

Precipitation

0 in

Pressure

1028 hPa

UV Index

0

Visibility

10 mi

Cloud Cover

1%

Dew Point

44°F

7-Day Weather Forecast

Today

Oct 25

Sunny / Clear
75°H
51°L
0%

Mon

Oct 26

Sunny / Clear
73°H
54°L
0%

Tue

Oct 27

Sunny / Clear
71°H
52°L
0%

Wed

Oct 28

Sunny / Clear
73°H
51°L
0%

Thu

Oct 29

Sunny / Clear
72°H
52°L
0%

Fri

Oct 30

Sunny / Clear
74°H
49°L
0%

Sat

Oct 31

Sunny / Clear
65°H
56°L
0%

24-Hour Forecast

8 AM

53°

0%

9 AM

52°

0%

10 AM

52°

0%

11 AM

51°

0%

12 PM

51°

0%

1 PM

53°

0%

2 PM

59°

0%

3 PM

64°

0%

4 PM

68°

0%

5 PM

72°

0%

6 PM

74°

0%

7 PM

75°

0%

8 PM

75°

0%

9 PM

74°

0%

10 PM

72°

0%

11 PM

66°

0%

12 AM

64°

0%

1 AM

62°

0%

2 AM

60°

0%

3 AM

59°

0%

4 AM

59°

0%

5 AM

59°

0%

6 AM

59°

0%

7 AM

58°

0%

Air Quality (AQI)

50Good

Air quality is satisfactory, and air pollution poses little or no risk.

PM2.5

16.5 µg/m³

PM10

16.5 µg/m³

Sun & Moon Phase

Sunrise

6:00 AM

Sunset

8:00 PM

Moon Phase

Full Moon

Full Moon

Wind Conditions & Storm Tracking

Wind Direction

107.2° ESE

Sustained Wind

4.9 mph

Wind Gusts

4.9 mph

7-Day Temp Range

Week's Hottest

75°F

Max Rain Prob

0%

Expected 7-Day Swings

49°
75°

High and low limits expected over the next week.

Extended Local Forecasts

14 Day Weather Forecast7 Day Weather ForecastHourly Weather Tracker

Location View

Johnson County · 37.45°N, 88.89°W
Radar Page
Coordinates37.4496°N, 88.8878°W
Elevationm
TimezoneAmerica/New_York

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Safety & Environmental Index

MetricValueStatus / Interpretation
Air Quality (AQI)50Good
UV Index0Low Risk
Visibility10 milesClear

Frequently Asked Questions

The 7-day forecast for Johnson County includes comprehensive daily weather summaries, max/min temperatures, and expected rainfall to keep you prepared for the week.

About Johnson County Climate & Weather

Weather forecast for Johnson County is powered by high-resolution weather models using open-source infrastructure. Check current temperatures, rain radar graphs, hourly wind speeds, humidity values, and ultraviolet indexes directly from our weather tracking console.

Meteorological Data: Weather data for this area is aggregated from global and regional forecast models (GFS, HRRR, ERA5) and updated continuously every hour.