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As of 11:13 CDT

Weather in Teheran, IL

57°Current weather

Teheran, Sunday, 18 October, 11:13

Clear. Feels like 55°. High 62°, low 39°.

Pressure30.47 inHg
Wind9.6 mph S
Humidity53%
Visibility6.2 mi
Dew point40°
Mon, 1967° / 39°0Clear
67 °Clear

Teheran, Monday, 19 October

Clear. High 67°, low 39°.

Pressure30.39 inHg
Wind3.1 mph S
Humidity55%
Visibility6.2 mi
Dew point46°
Tue, 2068° / 41°0Clear
68 °Clear

Teheran, Tuesday, 20 October

Clear. High 68°, low 41°.

Pressure30.39 inHg
Wind2.6 mph SE
Humidity51%
Visibility6.2 mi
Dew point46°
Wed, 2169° / 44°0Clear
69 °Clear

Teheran, Wednesday, 21 October

Clear. High 69°, low 44°.

Pressure30.30 inHg
Wind2.2 mph S
Humidity53%
Visibility6.2 mi
Dew point49°
Thu, 2269° / 47°0Clear
69 °Clear

Teheran, Thursday, 22 October

Clear. High 69°, low 47°.

Pressure30.30 inHg
Wind6.4 mph NE
Humidity49%
Visibility—
Dew point46°
Fri, 2369° / 49°0Clear
69 °Clear

Teheran, Friday, 23 October

Clear. High 69°, low 49°.

Pressure30.30 inHg
Wind8.6 mph SE
Humidity52%
Visibility—
Dew point47°
Sat, 2478° / 55°0Overcast
78 °Overcast

Teheran, Saturday, 24 October

Overcast. High 78°, low 55°.

Pressure30.24 inHg
Wind15.5 mph S
Humidity30%
Visibility—
Dew point40°
Sun, 2566° / 53°0.07Light rain
66 °Light rain

Teheran, Sunday, 25 October

Light rain. High 66°, low 53°.

Pressure30.45 inHg
Wind11.1 mph N
Humidity72%
Visibility—
Dew point46°
Mon, 2671° / 53°0Overcast
71 °Overcast

Teheran, Monday, 26 October

Overcast. High 71°, low 53°.

Pressure30.27 inHg
Wind8.1 mph S
Humidity53%
Visibility—
Dew point47°
Tue, 2773° / 58°0Overcast
73 °Overcast

Teheran, Tuesday, 27 October

Overcast. High 73°, low 58°.

Pressure30.21 inHg
Wind8.1 mph SE
Humidity35%
Visibility—
Dew point41°
Wed, 2871° / 56°0.14Light rain
71 °Light rain

Teheran, Wednesday, 28 October

Light rain. High 71°, low 56°.

Pressure29.94 inHg
Wind12.1 mph S
Humidity78%
Visibility—
Dew point56°
Thu, 2975° / 62°0.2Light rain
75 °Light rain

Teheran, Thursday, 29 October

Light rain. High 75°, low 62°.

Pressure29.77 inHg
Wind10.9 mph S
Humidity72%
Visibility—
Dew point59°
Fri, 3080° / 58°0.47Rain
80 °Rain

Teheran, Friday, 30 October

Rain. High 80°, low 58°.

Pressure29.68 inHg
Wind21.8 mph W
Humidity55%
Visibility—
Dew point57°
Sat, 3169° / 49°0.07Light rain
69 °Light rain

Teheran, Saturday, 31 October

Light rain. High 69°, low 49°.

Pressure29.77 inHg
Wind20.6 mph W
Humidity39%
Visibility—
Dew point29°
Sun, 0152° / 39°0Clear
52 °Clear

Teheran, Sunday, 1 November

Clear. High 52°, low 39°.

Pressure30.24 inHg
Wind17 mph W
Humidity48%
Visibility—
Dew point29°
Mon, 0260° / 39°0Mostly clear
60 °Mostly clear

Teheran, Monday, 2 November

Mostly clear. High 60°, low 39°.

Pressure30.39 inHg
Wind9.6 mph SE
Humidity31%
Visibility—
Dew point25°

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.