As of 17:29 CST

Weather in Johnston City, IL

46°

Johnston City, Thursday, 12 November, 17:29

Overcast. Feels like 40°. High 54°, low 41°.

Pressure30.00 inHg

Wind13.8 mph N

Humidity66%

Visibility6.2 mi

Dew point35°

See detailed hourly forecast

Fri, 1348° / 38°

48 °

Johnston City, Friday, 13 November

Partly cloudy. High 48°, low 38°.

Pressure30.06 inHg

Wind12.5 mph NW

Humidity54%

Visibility6.2 mi

Dew point26°

Sat, 1449° / 32°

49 °

Johnston City, Saturday, 14 November

Clear. High 49°, low 32°.

Pressure30.33 inHg

Wind4.9 mph N

Humidity51%

Visibility6.2 mi

Dew point26°

Sun, 1552° / 32°

52 °

Johnston City, Sunday, 15 November

Overcast. High 52°, low 32°.

Pressure30.45 inHg

Wind2.9 mph N

Humidity47%

Visibility6.2 mi

Dew point29°

Mon, 1654° / 34°

54 °

Johnston City, Monday, 16 November

Clear. High 54°, low 34°.

Pressure30.50 inHg

Wind2.7 mph SE

Humidity47%

Visibility6.2 mi

Dew point33°

Tue, 1757° / 33°

57 °

Johnston City, Tuesday, 17 November

Clear. High 57°, low 33°.

Pressure30.45 inHg

Wind4.9 mph SE

Humidity47%

Visibility—

Dew point32°

Wed, 1863° / 38°

63 °

Johnston City, Wednesday, 18 November

Mostly clear. High 63°, low 38°.

Pressure30.33 inHg

Wind12.1 mph S

Humidity37%

Visibility—

Dew point32°

Thu, 1965° / 47°

65 °

Johnston City, Thursday, 19 November

Overcast. High 65°, low 47°.

Pressure30.30 inHg

Wind13.2 mph S

Humidity28%

Visibility—

Dew point29°

Fri, 2068° / 47°

68 °

Johnston City, Friday, 20 November

Mostly clear. High 68°, low 47°.

Pressure30.33 inHg

Wind7.5 mph S

Humidity33%

Visibility—

Dew point34°

Sat, 2169° / 49°

69 °

Johnston City, Saturday, 21 November

Overcast. High 69°, low 49°.

Pressure30.27 inHg

Wind11 mph S

Humidity48%

Visibility—

Dew point45°

Sun, 2267° / 50°

67 °

Johnston City, Sunday, 22 November

Overcast. High 67°, low 50°.

Pressure30.06 inHg

Wind14.3 mph SE

Humidity47%

Visibility—

Dew point44°

Mon, 2365° / 62°

0.96

65 °

Johnston City, Monday, 23 November

Rain. High 65°, low 62°.

Pressure29.77 inHg

Wind23.6 mph S

Humidity81%

Visibility—

Dew point58°

Tue, 2464° / 47°

0.07

64 °

Johnston City, Tuesday, 24 November

Light rain. High 64°, low 47°.

Pressure29.94 inHg

Wind17.3 mph S

Humidity49%

Visibility—

Dew point38°

Wed, 2553° / 41°

53 °

Johnston City, Wednesday, 25 November

Partly cloudy. High 53°, low 41°.

Pressure30.27 inHg

Wind7.1 mph N

Humidity45%

Visibility—

Dew point31°

Thu, 2641° / 32°

0.05

41 °

Johnston City, Thursday, 26 November

Light rain. High 41°, low 32°.

Pressure30.27 inHg

Wind12.2 mph N

Humidity95%

Visibility—

Dew point35°

Fri, 2741° / 26°

41 °

Johnston City, Friday, 27 November

Clear. High 41°, low 26°.

Pressure30.53 inHg

Wind8.4 mph NW

Humidity46%

Visibility—

Dew point19°

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.