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As of 01:36 CDT

Weather in Teheran, IL

45°Current weather

Teheran, Saturday, 17 October, 01:36

Clear. Feels like 41°. High 57°, low 37°.

Pressure30.47 inHg
Wind7.8 mph N
Humidity2%
Visibility6.2 mi
Dew point-33°
Sun, 1864° / 42°0Clear
64 °Clear

Teheran, Sunday, 18 October

Clear. High 64°, low 42°.

Pressure30.47 inHg
Wind10.5 mph S
Humidity46%
Visibility6.2 mi
Dew point39°
Mon, 1967° / 42°0Clear
67 °Clear

Teheran, Monday, 19 October

Clear. High 67°, low 42°.

Pressure30.39 inHg
Wind3.8 mph S
Humidity49%
Visibility6.2 mi
Dew point44°
Tue, 2069° / 43°0Clear
69 °Clear

Teheran, Tuesday, 20 October

Clear. High 69°, low 43°.

Pressure30.36 inHg
Wind3 mph SE
Humidity52%
Visibility6.2 mi
Dew point46°
Wed, 2170° / 45°0Overcast
70 °Overcast

Teheran, Wednesday, 21 October

Overcast. High 70°, low 45°.

Pressure30.27 inHg
Wind5 mph S
Humidity43%
Visibility—
Dew point44°
Thu, 2275° / 50°0Overcast
75 °Overcast

Teheran, Thursday, 22 October

Overcast. High 75°, low 50°.

Pressure30.18 inHg
Wind6.5 mph SE
Humidity40%
Visibility—
Dew point43°
Fri, 2377° / 57°0Overcast
77 °Overcast

Teheran, Friday, 23 October

Overcast. High 77°, low 57°.

Pressure30.21 inHg
Wind8.6 mph SE
Humidity27%
Visibility—
Dew point37°
Sat, 2478° / 58°0Overcast
78 °Overcast

Teheran, Saturday, 24 October

Overcast. High 78°, low 58°.

Pressure30.21 inHg
Wind10.3 mph SW
Humidity28%
Visibility—
Dew point38°
Sun, 2561° / 53°0Overcast
61 °Overcast

Teheran, Sunday, 25 October

Overcast. High 61°, low 53°.

Pressure30.33 inHg
Wind11.3 mph N
Humidity45%
Visibility—
Dew point38°
Mon, 2669° / 53°0.01Light rain
69 °Light rain

Teheran, Monday, 26 October

Light rain. High 69°, low 53°.

Pressure30.30 inHg
Wind9.7 mph SE
Humidity41%
Visibility—
Dew point39°
Tue, 2763° / 60°0.13Light rain
63 °Light rain

Teheran, Tuesday, 27 October

Light rain. High 63°, low 60°.

Pressure30.15 inHg
Wind10.1 mph S
Humidity84%
Visibility—
Dew point58°
Wed, 2860° / 50°0.77Heavy rain
60 °Heavy rain

Teheran, Wednesday, 28 October

Heavy rain. High 60°, low 50°.

Pressure30.15 inHg
Wind11.4 mph N
Humidity47%
Visibility—
Dew point38°
Thu, 2957° / 46°0.64Rain
57 °Rain

Teheran, Thursday, 29 October

Rain. High 57°, low 46°.

Pressure29.94 inHg
Wind17.6 mph SE
Humidity90%
Visibility—
Dew point44°
Fri, 3062° / 50°0.03Light rain
62 °Light rain

Teheran, Friday, 30 October

Light rain. High 62°, low 50°.

Pressure29.59 inHg
Wind17.5 mph NW
Humidity79%
Visibility—
Dew point54°
Sat, 3157° / 48°0Light rain
57 °Light rain

Teheran, Saturday, 31 October

Light rain. High 57°, low 48°.

Pressure30.15 inHg
Wind15.7 mph NW
Humidity47%
Visibility—
Dew point34°
Sun, 0160° / 44°0Clear
60 °Clear

Teheran, Sunday, 1 November

Clear. High 60°, low 44°.

Pressure30.15 inHg
Wind5.9 mph W
Humidity53%
Visibility—
Dew point40°

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.