Johnson County Weather Conditions
Current Temperature Level
Johnson County Weather Conditions
Current Temperature Level
Last Updated: 2026-08-18 23:00 (Local Time)
Overcast
Fully overcast skies with a high of 20 °C. Humidity will be 47%, and winds at 38.5 km/h.30°C / 14°C
Sunrise
06:14 AM13hrs 52min
Sunset
08:06 PMAugustWeather Overview
No. of days:
Sunny
19
Cloudy
0
Rainy
7
Snowy
0
The monthly weather averages in Johnson County consist of 19 sunny days, 0 cloudy days, 7 rainy days, and 0 snowy days.
United States's Hottest Cities - August 2026
1.
Park Village, California
39 °C
Overcast
10%
0
6.8 kmph / S
2.
Buckeye, Arizona
37 °C
Cloudy
16%
0
11.9 kmph / SSW
3.
Indio, California
37 °C
Clear
16%
0
13 kmph / NW
4.
Casa Grande, Arizona
37 °C
Clear
16%
0
16.9 kmph / ESE
5.
Fort McDowell, Arizona
37 °C
Clear
16%
0
10.8 kmph / NE
6.
Fountain Hills, Arizona
37 °C
Clear
16%
0
10.8 kmph / NE
7.
Sun City, Arizona
37 °C
Overcast
18%
0
13 kmph / SSE
8.
Surprise, Arizona
37 °C
Overcast
18%
0
13 kmph / SSE
9.
Tolleson, Arizona
37 °C
Clear
17%
0
11.5 kmph / E
10.
Guadalupe, Arizona
37 °C
Clear
17%
0
11.5 kmph / E
Last Updated: 19 Aug 2026, 05:27 AM
City Weather RankingsFAQs About Johnson County Weather Conditions
1. What is the current temperature in Johnson County today - 18 August 2026?
1. What is the current temperature in Johnson County today - 18 August 2026?
The current temperature in Johnson County is 15°C, with a feels-like temperature of 15°C. Today's forecast shows a high of 30°C and a low of 14°C, giving a 16 degree swing through the day as of 11:00 PM 18 August 2026.
2. What are the current weather parameters in Johnson County today?
2. What are the current weather parameters in Johnson County today?
Here is a complete overview of Johnson County's current weather conditions as of 11:00 PM 18 August 2026: Condition : Rain Temperature : 15°C Cool (Feels like 15°C) Humidity : 83% Wind Speed : 9 km/h from NE (40 degrees), Gust 5.2 m/s UV Index : 0 (Low Air Pressure : 1017 mb Cloud Cover : 70% Visibility : 10 km Precipitation : 5.42 mm (73% chance of rain)
3. What is the 10-day weather forecast for Johnson County from 11:00 PM 18 August 2026?
3. What is the 10-day weather forecast for Johnson County from 11:00 PM 18 August 2026?
From 11:00 PM 18 August 2026, Johnson County's 10-day forecast shows this trend: Today (Aug. 18) : Temp. 20°C, Hum. 47% and Overcast condition. Wednesday (Aug. 19) : Temp. 22°C, Hum. 42% and Sunny condition. Thursday (Aug. 20) : Temp. 27°C, Hum. 19% and Sunny condition. Friday (Aug. 21) : Temp. 29°C, Hum. 19% and Sunny condition. Saturday (Aug. 22) : Temp. 29°C, Hum. 21% and Overcast condition. Sunday (Aug. 23) : Temp. 29°C, Hum. 24% and Sunny condition. Monday (Aug. 24) : Temp. 27°C, Hum. 28% and Overcast condition. Tuesday (Aug. 25) : Temp. 27°C, Hum. 36% and Sunny condition. Wednesday (Aug. 26) : Temp. 19°C, Hum. 41% and Rain condition. Thursday (Aug. 27) : Temp. 19°C, Hum. 42% and Rain Possible condition.
4. Will it rain in Johnson County today?
4. Will it rain in Johnson County today?
As of 11:00 PM 18 August 2026, yes — Johnson County is currently experiencing rainfall with 5.42 mm of precipitation. This is expected to temporarily improve AQI by washing pollutants out of the atmosphere.
5. What is the monthly weather forecast for Johnson County in August 2026?
5. What is the monthly weather forecast for Johnson County in August 2026?
August 2026 in Johnson County is forecast to have 19 sunny days, 7 rainy days, 0 cloudy days, and 0 snowy days. Temperatures for the month range from lows around 7°C to highs of 39°C.
6. How does the weather in Johnson County affect air quality?
6. How does the weather in Johnson County affect air quality?
Weather directly impacts air quality in Johnson County. Calm winds, high humidity, fog, and high pressure trap pollutants near the ground, worsening AQI. Strong winds, rainfall, and low pressure help disperse them. Rising temperatures and UV levels intensify ozone and smog formation, while poor visibility signals elevated particulate matter. Monitoring weather alongside AQI gives the clearest picture of outdoor safety.



