As of 00:30 CDT

Weather in Teheran, IL

56°

Teheran, Friday, 16 October, 00:30

Overcast. Feels like 56°. High 56°, low 49°.

Pressure30.00 inHg

Wind15.6 mph NW

Humidity100%

Visibility6.2 mi

Dew point56°

See detailed hourly forecast

Sat, 1757° / 40°

57 °

Teheran, Saturday, 17 October

Clear. High 57°, low 40°.

Pressure30.59 inHg

Wind0.2 mph NE

Humidity44%

Visibility6.2 mi

Dew point30°

Sun, 1863° / 42°

63 °

Teheran, Sunday, 18 October

Clear. High 63°, low 42°.

Pressure30.47 inHg

Wind10.6 mph S

Humidity44%

Visibility6.2 mi

Dew point38°

Mon, 1967° / 42°

67 °

Teheran, Monday, 19 October

Clear. High 67°, low 42°.

Pressure30.39 inHg

Wind5.5 mph S

Humidity50%

Visibility6.2 mi

Dew point43°

Tue, 2069° / 45°

69 °

Teheran, Tuesday, 20 October

Clear. High 69°, low 45°.

Pressure30.33 inHg

Wind5.1 mph S

Humidity40%

Visibility—

Dew point40°

Wed, 2171° / 50°

71 °

Teheran, Wednesday, 21 October

Overcast. High 71°, low 50°.

Pressure30.30 inHg

Wind6.2 mph SE

Humidity43%

Visibility—

Dew point42°

Thu, 2277° / 55°

77 °

Teheran, Thursday, 22 October

Overcast. High 77°, low 55°.

Pressure30.24 inHg

Wind7.2 mph SE

Humidity28%

Visibility—

Dew point37°

Fri, 2377° / 56°

77 °

Teheran, Friday, 23 October

Partly cloudy. High 77°, low 56°.

Pressure30.15 inHg

Wind10.9 mph SE

Humidity26%

Visibility—

Dew point36°

Sat, 2477° / 59°

77 °

Teheran, Saturday, 24 October

Overcast. High 77°, low 59°.

Pressure30.18 inHg

Wind9.8 mph SE

Humidity28%

Visibility—

Dew point38°

Sun, 2575° / 56°

75 °

Teheran, Sunday, 25 October

Overcast. High 75°, low 56°.

Pressure30.24 inHg

Wind7.6 mph E

Humidity31%

Visibility—

Dew point38°

Mon, 2675° / 59°

75 °

Teheran, Monday, 26 October

Overcast. High 75°, low 59°.

Pressure30.03 inHg

Wind13.4 mph S

Humidity30%

Visibility—

Dew point36°

Tue, 2763° / 47°

63 °

Teheran, Tuesday, 27 October

Clear. High 63°, low 47°.

Pressure30.06 inHg

Wind12.7 mph W

Humidity53%

Visibility—

Dew point41°

Wed, 2858° / 50°

0.9

58 °

Teheran, Wednesday, 28 October

Heavy rain. High 58°, low 50°.

Pressure29.62 inHg

Wind23.7 mph W

Humidity89%

Visibility—

Dew point54°

Thu, 2959° / 46°

0.1

59 °

Teheran, Thursday, 29 October

Light rain. High 59°, low 46°.

Pressure29.94 inHg

Wind21.9 mph W

Humidity60%

Visibility—

Dew point42°

Fri, 3065° / 47°

65 °

Teheran, Friday, 30 October

Mostly clear. High 65°, low 47°.

Pressure30.06 inHg

Wind8.9 mph NW

Humidity38%

Visibility—

Dew point35°

Sat, 3165° / 49°

65 °

Teheran, Saturday, 31 October

Overcast. High 65°, low 49°.

Pressure29.97 inHg

Wind8.9 mph S

Humidity40%

Visibility—

Dew point38°

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 Teheran, 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 Teheran, 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.