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As of 04:30 CDT

Weather in Rock Valley, IA

53°Current weather

Rock Valley, Thursday, 8 October, 04:30

Overcast. Feels like 51°. High 75°, low 51°.

Pressure30.06 inHg
Wind4.2 mph E
Humidity76%
Visibility6.2 mi
Dew point45°
Fri, 0980° / 53°0.02Light rain
80 °Light rain

Rock Valley, Friday, 9 October

Light rain. High 80°, low 53°.

Pressure29.91 inHg
Wind6.7 mph SE
Humidity67%
Visibility6.2 mi
Dew point59°
Sat, 1083° / 66°0Clear
83 °Clear

Rock Valley, Saturday, 10 October

Clear. High 83°, low 66°.

Pressure29.74 inHg
Wind18.8 mph S
Humidity45%
Visibility6.2 mi
Dew point55°
Sun, 1182° / 66°0Overcast
82 °Overcast

Rock Valley, Sunday, 11 October

Overcast. High 82°, low 66°.

Pressure29.77 inHg
Wind15.2 mph S
Humidity46%
Visibility6.2 mi
Dew point55°
Mon, 1278° / 59°0Clear
78 °Clear

Rock Valley, Monday, 12 October

Clear. High 78°, low 59°.

Pressure29.68 inHg
Wind15 mph NW
Humidity49%
Visibility—
Dew point55°
Tue, 1356° / 48°0Overcast
56 °Overcast

Rock Valley, Tuesday, 13 October

Overcast. High 56°, low 48°.

Pressure30.12 inHg
Wind13.9 mph NW
Humidity56%
Visibility—
Dew point38°
Wed, 1480° / 53°0.19Light rain
80 °Light rain

Rock Valley, Wednesday, 14 October

Light rain. High 80°, low 53°.

Pressure29.62 inHg
Wind24.9 mph S
Humidity56%
Visibility—
Dew point53°
Thu, 1578° / 61°0.05Light rain
78 °Light rain

Rock Valley, Thursday, 15 October

Light rain. High 78°, low 61°.

Pressure29.56 inHg
Wind23 mph S
Humidity39%
Visibility—
Dew point48°
Fri, 1654° / 48°0Overcast
54 °Overcast

Rock Valley, Friday, 16 October

Overcast. High 54°, low 48°.

Pressure30.30 inHg
Wind24.1 mph W
Humidity62%
Visibility—
Dew point38°
Sat, 1758° / 46°0Partly cloudy
58 °Partly cloudy

Rock Valley, Saturday, 17 October

Partly cloudy. High 58°, low 46°.

Pressure30.42 inHg
Wind7.8 mph SE
Humidity49%
Visibility—
Dew point35°
Sun, 1867° / 44°0Clear
67 °Clear

Rock Valley, Sunday, 18 October

Clear. High 67°, low 44°.

Pressure30.18 inHg
Wind10.7 mph S
Humidity47%
Visibility—
Dew point40°
Mon, 1961° / 52°0.04Light rain
61 °Light rain

Rock Valley, Monday, 19 October

Light rain. High 61°, low 52°.

Pressure30.12 inHg
Wind5.3 mph S
Humidity69%
Visibility—
Dew point46°
Tue, 2071° / 48°0Clear
71 °Clear

Rock Valley, Tuesday, 20 October

Clear. High 71°, low 48°.

Pressure30.09 inHg
Wind6.8 mph SW
Humidity51%
Visibility—
Dew point46°
Wed, 2176° / 52°0Mostly clear
76 °Mostly clear

Rock Valley, Wednesday, 21 October

Mostly clear. High 76°, low 52°.

Pressure29.77 inHg
Wind20.2 mph S
Humidity53%
Visibility—
Dew point53°
Thu, 2268° / 56°0.02Light rain
68 °Light rain

Rock Valley, Thursday, 22 October

Light rain. High 68°, low 56°.

Pressure29.50 inHg
Wind21.7 mph S
Humidity33%
Visibility—
Dew point37°
Fri, 2382° / 55°0Clear
82 °Clear

Rock Valley, Friday, 23 October

Clear. High 82°, low 55°.

Pressure29.53 inHg
Wind16.4 mph SW
Humidity36%
Visibility—
Dew point46°

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 Rock Valley, IA 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 Rock Valley, IA 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.