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As of 16:42 CDT

Weather in Johnston City, IL

71°Current weather

Johnston City, Saturday, 31 October, 16:42

Overcast. Feels like 70°. High 71°, low 58°.

Pressure30.21 inHg
Wind5.7 mph E
Humidity58%
Visibility6.2 mi
Dew point55°
Sun, 0165° / 55°0.07Light rain
65 °Light rain

Johnston City, Sunday, 1 November

Light rain. High 65°, low 55°.

Pressure30.30 inHg
Wind11.1 mph SE
Humidity67%
Visibility6.2 mi
Dew point52°
Mon, 0268° / 57°0.01Light rain
68 °Light rain

Johnston City, Monday, 2 November

Light rain. High 68°, low 57°.

Pressure30.09 inHg
Wind12.4 mph S
Humidity85%
Visibility6.2 mi
Dew point60°
Tue, 0374° / 65°0.01Light rain
74 °Light rain

Johnston City, Tuesday, 3 November

Light rain. High 74°, low 65°.

Pressure29.94 inHg
Wind20.6 mph S
Humidity67%
Visibility6.2 mi
Dew point62°
Wed, 0470° / 57°0.67Rain
70 °Rain

Johnston City, Wednesday, 4 November

Rain. High 70°, low 57°.

Pressure29.77 inHg
Wind8.7 mph SW
Humidity69%
Visibility6.2 mi
Dew point57°
Thu, 0570° / 53°0Clear
70 °Clear

Johnston City, Thursday, 5 November

Clear. High 70°, low 53°.

Pressure29.80 inHg
Wind10.5 mph SW
Humidity44%
Visibility—
Dew point44°
Fri, 0666° / 53°0.35Rain
66 °Rain

Johnston City, Friday, 6 November

Rain. High 66°, low 53°.

Pressure29.85 inHg
Wind7.4 mph NW
Humidity59%
Visibility—
Dew point49°
Sat, 0761° / 50°0Overcast
61 °Overcast

Johnston City, Saturday, 7 November

Overcast. High 61°, low 50°.

Pressure29.80 inHg
Wind5.4 mph NW
Humidity56%
Visibility—
Dew point44°
Sun, 0861° / 49°0Overcast
61 °Overcast

Johnston City, Sunday, 8 November

Overcast. High 61°, low 49°.

Pressure29.77 inHg
Wind13.4 mph NW
Humidity63%
Visibility—
Dew point44°
Mon, 0958° / 46°0Mostly clear
58 °Mostly clear

Johnston City, Monday, 9 November

Mostly clear. High 58°, low 46°.

Pressure29.97 inHg
Wind13.9 mph NW
Humidity51%
Visibility—
Dew point38°
Tue, 1062° / 42°0Overcast
62 °Overcast

Johnston City, Tuesday, 10 November

Overcast. High 62°, low 42°.

Pressure30.06 inHg
Wind6.8 mph W
Humidity42%
Visibility—
Dew point35°
Wed, 1165° / 49°0Mostly clear
65 °Mostly clear

Johnston City, Wednesday, 11 November

Mostly clear. High 65°, low 49°.

Pressure29.80 inHg
Wind6.4 mph N
Humidity47%
Visibility—
Dew point42°
Thu, 1258° / 41°0.2Rain
58 °Rain

Johnston City, Thursday, 12 November

Rain. High 58°, low 41°.

Pressure29.77 inHg
Wind10.6 mph E
Humidity35%
Visibility—
Dew point28°
Fri, 1365° / 47°0.85Heavy rain
65 °Heavy rain

Johnston City, Friday, 13 November

Heavy rain. High 65°, low 47°.

Pressure29.62 inHg
Wind11.9 mph E
Humidity81%
Visibility—
Dew point58°
Sat, 1449° / 43°0.28Rain
49 °Rain

Johnston City, Saturday, 14 November

Rain. High 49°, low 43°.

Pressure29.77 inHg
Wind13.8 mph NW
Humidity90%
Visibility—
Dew point42°
Sun, 1544° / 41°0Overcast
44 °Overcast

Johnston City, Sunday, 15 November

Overcast. High 44°, low 41°.

Pressure30.03 inHg
Wind10.6 mph NW
Humidity72%
Visibility—
Dew point35°

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.