Weather for three days

Grayslake

Determine location

sunday
27 september

min.+12° max.+20°
Overcast

Overcast

Overcast night

+14°

Overcast morning

+13°

Overcast day

+19°

Partly cloudy evening

+17°

Precipitation probability, %

17%

27%

12%

9%

Wind speed, m/s

1.4

1.4

2.2

2.2

monday
28 september

min.+12° max.+22°
Partly cloudy

Partly cloudy

Partly cloudy night

+13°

Clear morning

+12°

Partly cloudy day

+20°

Cloudy evening

+18°

Precipitation probability, %

6%

11%

3%

4%

Wind speed, m/s

1.9

2.2

1.9

2.8

tuesday
29 september

min.+15° max.+23°
Overcast

Overcast

Clear night

+16°

Partly cloudy morning

+15°

Overcast day

+21°

Overcast evening

+22°

Precipitation probability, %

7%

10%

12%

14%

Wind speed, m/s

1.4

1.9

3.9

2.2

Geomagnetic activity,
Kp-index for three days

00:00 03:00 06:00 09:00 12:00 15:00 18:00 21:00
27.09.2026
Sunday
-
2
3
2
2
2
2
2
28.09.2026
Monday
2
2
2
2
1
1
2
2
29.09.2026
Tuesday
1
1
1
1
1
2
2
-
– Small disturbances
– Weak storms
– Strong storms
– Extreme storms

Nearest locations

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