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As of 14:18 CDT

Weather in Grinnell, KS

101°Current weather

Grinnell, Saturday, 8 August, 14:18

Overcast. Feels like 100°. High 104°, low 66°.

Pressure29.80 inHg
Wind18.3 mph SW
Humidity21%
Visibility6.2 mi
Dew point53°
Sun, 09106° / 72°0Overcast
106 °Overcast

Grinnell, Sunday, 9 August

Overcast. High 106°, low 72°.

Pressure29.71 inHg
Wind5.3 mph SW
Humidity12%
Visibility6.2 mi
Dew point40°
Mon, 10105° / 76°0Overcast
105 °Overcast

Grinnell, Monday, 10 August

Overcast. High 105°, low 76°.

Pressure29.77 inHg
Wind4 mph S
Humidity22%
Visibility6.2 mi
Dew point49°
Tue, 11107° / 77°0Overcast
107 °Overcast

Grinnell, Tuesday, 11 August

Overcast. High 107°, low 77°.

Pressure29.71 inHg
Wind3.3 mph W
Humidity18%
Visibility6.2 mi
Dew point49°
Wed, 12102° / 71°0.02Light rain
102 °Light rain

Grinnell, Wednesday, 12 August

Light rain. High 102°, low 71°.

Pressure29.74 inHg
Wind10.8 mph NE
Humidity30%
Visibility6.2 mi
Dew point57°
Thu, 1382° / 68°0.12Light rain
82 °Light rain

Grinnell, Thursday, 13 August

Light rain. High 82°, low 68°.

Pressure29.91 inHg
Wind24 mph NE
Humidity67%
Visibility—
Dew point64°
Fri, 1479° / 65°0.01Light rain
79 °Light rain

Grinnell, Friday, 14 August

Light rain. High 79°, low 65°.

Pressure30.12 inHg
Wind13.3 mph SE
Humidity70%
Visibility—
Dew point62°
Sat, 1597° / 67°0.16Light rain
97 °Light rain

Grinnell, Saturday, 15 August

Light rain. High 97°, low 67°.

Pressure30.00 inHg
Wind15 mph S
Humidity46%
Visibility—
Dew point62°
Sun, 16101° / 74°0Light rain
101 °Light rain

Grinnell, Sunday, 16 August

Light rain. High 101°, low 74°.

Pressure29.91 inHg
Wind14.8 mph SE
Humidity32%
Visibility—
Dew point58°
Mon, 17102° / 76°0Mostly clear
102 °Mostly clear

Grinnell, Monday, 17 August

Mostly clear. High 102°, low 76°.

Pressure29.88 inHg
Wind22.3 mph NE
Humidity19%
Visibility—
Dew point49°
Tue, 1891° / 71°0Overcast
91 °Overcast

Grinnell, Tuesday, 18 August

Overcast. High 91°, low 71°.

Pressure29.97 inHg
Wind20.2 mph N
Humidity55%
Visibility—
Dew point64°
Wed, 1999° / 73°0.21Rain
99 °Rain

Grinnell, Wednesday, 19 August

Rain. High 99°, low 73°.

Pressure29.83 inHg
Wind11.9 mph S
Humidity33%
Visibility—
Dew point58°
Thu, 2089° / 68°0.04Light rain
89 °Light rain

Grinnell, Thursday, 20 August

Light rain. High 89°, low 68°.

Pressure29.94 inHg
Wind14 mph NE
Humidity48%
Visibility—
Dew point62°
Fri, 2190° / 69°0.21Light rain
90 °Light rain

Grinnell, Friday, 21 August

Light rain. High 90°, low 69°.

Pressure29.94 inHg
Wind10.9 mph SE
Humidity49%
Visibility—
Dew point60°
Sat, 2298° / 68°0.02Light rain
98 °Light rain

Grinnell, Saturday, 22 August

Light rain. High 98°, low 68°.

Pressure29.91 inHg
Wind25.5 mph E
Humidity26%
Visibility—
Dew point51°
Sun, 2384° / 68°0.04Light rain
84 °Light rain

Grinnell, Sunday, 23 August

Light rain. High 84°, low 68°.

Pressure30.09 inHg
Wind11 mph NE
Humidity62%
Visibility—
Dew point62°

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 Grinnell, KS 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 Grinnell, KS 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.