Johnston City Weather Today

Daily Weather Forecast & Temperature in Johnston City

overcast clouds
21°
overcast clouds
H: 21° L: 20°
Feels like 21°
AQI: (/5)
Humidity
78%
Dew 17°
Wind speed
14.83 km/h
SSW
Pressure
1014 hPa
Visibility
10 km
Windy Conditions
Wind speed is 14.83 km/h.
Weather Summary
Currently in Johnston City, expect varied conditions with warm temperatures around 21°. Winds are a light breeze.
Precipitation Probability
0%
07
0%
10
0%
13
0%
16
0%
19
20%
22
64%
01
100%
04
91%
07
39%
10
0%
13
0%
16
0%
19
0%
22
0%
01
100%
04
Evolution
Daily Weather Forecast Evolution (°C)
Lowest temperature
Highest temperature
Temperature Forecast (48h)
22°
Tue
07:00
25°
 
30°
 
30°
 
27°
Tue
19:00
23°
 
21°
 
19°
 
20°
Wed
07:00
22°
 
26°
 
26°
 
23°
Wed
19:00
21°
 
21°
 
19°
 
Hot (≥30°)
Warm
Cool
Cold (<0°)
Weather Map
Sun & Moon
Sunrise
Sunrise
06:21
Sunset
Sunset
19:29
Moon Phase
Waning Crescent (8%)
Timezone: GMT+05:30
Last updated: Apr 14, 2026 4:09 PM · Data refreshes every 5 min
Location Info
Latitude
Latitude
37.820610
Longitude
Longitude
-88.927567
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More about Johnston City
Content curated by the NearWeather editorial team · Updated periodically
Johnston City is a small city located in Williamson County, Illinois, United States. It has a population of approximately 2,400 people. The city is located in the south central part of the state, about 25 miles from the state capital of Springfield. The climate in Johnston City is mild, with hot summers and cold winters. The average temperature year-round is between 40°F and 70°F. Summers are usually hot and humid with temperatures in the 80s and 90s, while winters are cold and snowy with temperatures in the 20s and 30s.
Weather data sourced from OpenWeatherMap. Forecasts are estimates and may differ from actual conditions. For severe weather, consult your local meteorological authority.
FAQ's about Johnston City
What is the Latitude and Longitude of Johnston City?

Johnston City's Latitude is 37.820610 & Longitude is -88.927567.

What is the weather in Johnston City today?

Weather in Johnston City is 21° today.

What is the climatic condition of Johnston City today?

Climate Conditions in Johnston City shows overcast clouds today.

What is the humidity in Johnston City today?

Humidity in Johnston City is 78% today.

What is the wind speed in Johnston City today?

Wind speed in Johnston City is 14.83 km/h, flowing at 210° SSW wind direction.

What does it feel like in Johnston City today?

It feels like 21° in Johnston City today, with 100% cloud cover and 10 km visibility.

Weather in Johnston City