EN
English Español

As of 19:58 CDT

Weather in Grand Pass, IL

83°Current weather

Grand Pass, Saturday, 8 August, 19:58

Clear. Feels like 90°. High 89°, low 70°.

Pressure29.97 inHg
Wind6.4 mph SE
Humidity75%
Visibility6.2 mi
Dew point74°
Sun, 0995° / 72°0Partly cloudy
95 °Partly cloudy

Grand Pass, Sunday, 9 August

Partly cloudy. High 95°, low 72°.

Pressure29.91 inHg
Wind14.1 mph S
Humidity52%
Visibility6.2 mi
Dew point71°
Mon, 10101° / 74°0Overcast
101 °Overcast

Grand Pass, Monday, 10 August

Overcast. High 101°, low 74°.

Pressure29.91 inHg
Wind11.1 mph SW
Humidity51%
Visibility6.2 mi
Dew point70°
Tue, 11103° / 76°0.05Light rain
103 °Light rain

Grand Pass, Tuesday, 11 August

Light rain. High 103°, low 76°.

Pressure29.83 inHg
Wind13.2 mph SW
Humidity41%
Visibility6.2 mi
Dew point68°
Wed, 1289° / 73°0.05Light rain
89 °Light rain

Grand Pass, Wednesday, 12 August

Light rain. High 89°, low 73°.

Pressure29.85 inHg
Wind4.6 mph N
Humidity60%
Visibility6.2 mi
Dew point72°
Thu, 1381° / 67°1.26Heavy rain
81 °Heavy rain

Grand Pass, Thursday, 13 August

Heavy rain. High 81°, low 67°.

Pressure29.91 inHg
Wind13.5 mph E
Humidity75%
Visibility—
Dew point71°
Fri, 1475° / 67°0.61Rain
75 °Rain

Grand Pass, Friday, 14 August

Rain. High 75°, low 67°.

Pressure30.06 inHg
Wind11.1 mph E
Humidity88%
Visibility—
Dew point69°
Sat, 1576° / 68°0.23Light rain
76 °Light rain

Grand Pass, Saturday, 15 August

Light rain. High 76°, low 68°.

Pressure30.18 inHg
Wind15.9 mph SE
Humidity75%
Visibility—
Dew point66°
Sun, 1677° / 66°0.24Rain
77 °Rain

Grand Pass, Sunday, 16 August

Rain. High 77°, low 66°.

Pressure30.09 inHg
Wind10.4 mph E
Humidity86%
Visibility—
Dew point69°
Mon, 1780° / 67°0.28Rain
80 °Rain

Grand Pass, Monday, 17 August

Rain. High 80°, low 67°.

Pressure30.03 inHg
Wind6.2 mph NE
Humidity80%
Visibility—
Dew point70°
Tue, 1885° / 68°0.01Light rain
85 °Light rain

Grand Pass, Tuesday, 18 August

Light rain. High 85°, low 68°.

Pressure30.00 inHg
Wind6.9 mph SW
Humidity76%
Visibility—
Dew point72°
Wed, 1983° / 68°0Overcast
83 °Overcast

Grand Pass, Wednesday, 19 August

Overcast. High 83°, low 68°.

Pressure29.91 inHg
Wind14.4 mph N
Humidity71%
Visibility—
Dew point71°
Thu, 2076° / 58°0Partly cloudy
76 °Partly cloudy

Grand Pass, Thursday, 20 August

Partly cloudy. High 76°, low 58°.

Pressure30.03 inHg
Wind13.4 mph NE
Humidity56%
Visibility—
Dew point55°
Fri, 2173° / 54°0Overcast
73 °Overcast

Grand Pass, Friday, 21 August

Overcast. High 73°, low 54°.

Pressure30.06 inHg
Wind10.6 mph SE
Humidity56%
Visibility—
Dew point54°
Sat, 2281° / 62°0.13Light rain
81 °Light rain

Grand Pass, Saturday, 22 August

Light rain. High 81°, low 62°.

Pressure29.83 inHg
Wind13.5 mph S
Humidity65%
Visibility—
Dew point66°
Sun, 2391° / 68°0Clear
91 °Clear

Grand Pass, Sunday, 23 August

Clear. High 91°, low 68°.

Pressure29.94 inHg
Wind5.3 mph W
Humidity51%
Visibility—
Dew point65°

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 Grand Pass, 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 Grand Pass, 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.