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As of 21:33 CST

Weather in Johnston City, IL

42°Current weather

Johnston City, Friday, 6 November, 21:33

Clear. Feels like 39°. High 53°, low 42°.

Pressure30.24 inHg
Wind4.6 mph N
Humidity75%
Visibility6.2 mi
Dew point35°
Sat, 0753° / 36°0Overcast
53 °Overcast

Johnston City, Saturday, 7 November

Overcast. High 53°, low 36°.

Pressure30.24 inHg
Wind3.6 mph NW
Humidity52%
Visibility6.2 mi
Dew point35°
Sun, 0861° / 37°0Clear
61 °Clear

Johnston City, Sunday, 8 November

Clear. High 61°, low 37°.

Pressure30.15 inHg
Wind7.1 mph W
Humidity54%
Visibility6.2 mi
Dew point41°
Mon, 0964° / 41°0Clear
64 °Clear

Johnston City, Monday, 9 November

Clear. High 64°, low 41°.

Pressure30.21 inHg
Wind2.6 mph SW
Humidity56%
Visibility6.2 mi
Dew point46°
Tue, 1067° / 46°0Clear
67 °Clear

Johnston City, Tuesday, 10 November

Clear. High 67°, low 46°.

Pressure30.09 inHg
Wind4.5 mph W
Humidity54%
Visibility6.2 mi
Dew point49°
Wed, 1168° / 45°0Light rain
68 °Light rain

Johnston City, Wednesday, 11 November

Light rain. High 68°, low 45°.

Pressure29.88 inHg
Wind9.7 mph SW
Humidity53%
Visibility—
Dew point47°
Thu, 1255° / 43°0.01Light rain
55 °Light rain

Johnston City, Thursday, 12 November

Light rain. High 55°, low 43°.

Pressure29.83 inHg
Wind18.2 mph NW
Humidity59%
Visibility—
Dew point38°
Fri, 1344° / 33°0Overcast
44 °Overcast

Johnston City, Friday, 13 November

Overcast. High 44°, low 33°.

Pressure30.09 inHg
Wind14 mph NW
Humidity43%
Visibility—
Dew point22°
Sat, 1445° / 27°0Clear
45 °Clear

Johnston City, Saturday, 14 November

Clear. High 45°, low 27°.

Pressure30.21 inHg
Wind9.5 mph NW
Humidity32%
Visibility—
Dew point14°
Sun, 1551° / 29°0Overcast
51 °Overcast

Johnston City, Sunday, 15 November

Overcast. High 51°, low 29°.

Pressure30.36 inHg
Wind6.8 mph S
Humidity27%
Visibility—
Dew point14°
Mon, 1659° / 36°0Clear
59 °Clear

Johnston City, Monday, 16 November

Clear. High 59°, low 36°.

Pressure30.36 inHg
Wind10.7 mph SW
Humidity32%
Visibility—
Dew point26°
Tue, 1761° / 46°0Overcast
61 °Overcast

Johnston City, Tuesday, 17 November

Overcast. High 61°, low 46°.

Pressure30.33 inHg
Wind8.8 mph SW
Humidity35%
Visibility—
Dew point31°
Wed, 1865° / 45°0Clear
65 °Clear

Johnston City, Wednesday, 18 November

Clear. High 65°, low 45°.

Pressure30.36 inHg
Wind5.6 mph S
Humidity34%
Visibility—
Dew point33°
Thu, 1961° / 47°0Overcast
61 °Overcast

Johnston City, Thursday, 19 November

Overcast. High 61°, low 47°.

Pressure30.33 inHg
Wind9.2 mph S
Humidity57%
Visibility—
Dew point41°
Fri, 2063° / 51°0.06Light rain
63 °Light rain

Johnston City, Friday, 20 November

Light rain. High 63°, low 51°.

Pressure30.15 inHg
Wind16.5 mph S
Humidity44%
Visibility—
Dew point39°
Sat, 2156° / 39°0.22Rain
56 °Rain

Johnston City, Saturday, 21 November

Rain. High 56°, low 39°.

Pressure30.06 inHg
Wind15.9 mph NW
Humidity77%
Visibility—
Dew point43°

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Johnston City, IL are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Johnston City, IL since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.