Weather in Leland Grove, IL
Leland Grove, Sunday, 9 August, 07:01
Partly cloudy. Feels like 74°. High 93°, low 71°.
Monthly outlook for Leland Grove, IL: average high 92.8°, average low 70.8°. That is 5.4° above the climate normal for August. Precipitation is expected on 7 days (about 1.4 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 20 August (114.3°), the coolest 14 August (62.7°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 87.3° | 83.2° | +2.3° |
| 19 August – 28 August | 102° | 83.4° | +10.3° |
| 29 August – 7 September | at normal | 81.6° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Springfield (2 mi).
0.01
Leland Grove, Monday, 10 August
Light rain. High 98°, low 77°.
0.06Leland Grove, Tuesday, 11 August
Light rain. High 98°, low 68°.
0.45Leland Grove, Wednesday, 12 August
Rain. High 91°, low 70°.
0.07Leland Grove, Thursday, 13 August
Light rain. High 86°, low 67°.
0.38Leland Grove, Friday, 14 August
Rain. High 71°, low 63°.
0.23Leland Grove, Saturday, 15 August
Light rain. High 80°, low 64°.
0.02Leland Grove, Sunday, 16 August
Light rain. High 84°, low 65°.
0
Leland Grove, Monday, 17 August
Overcast. High 85°, low 68°.
0Leland Grove, Tuesday, 18 August
Overcast. High 87°, low 66°.
0Leland Grove, Wednesday, 19 August
Partly cloudy. High 98°, low 74°.
0Leland Grove, Thursday, 20 August
Overcast. High 114°, low 80°.
0Leland Grove, Friday, 21 August
Partly cloudy. High 97°, low 76°.
0
Leland Grove, Saturday, 22 August
Clear. High 105°, low 75°.
0.07Leland Grove, Sunday, 23 August
Light rain. High 106°, low 76°.
0.15Leland Grove, Monday, 24 August
Light rain. High 92°, low 72°.
0.08Leland Grove, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.11Leland Grove, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Leland Grove, Thursday, 27 August
Climate normal for this date — 60-year average.
0.11Leland Grove, Friday, 28 August
Climate normal for this date — 60-year average.
0.08Leland Grove, Saturday, 29 August
Climate normal for this date — 60-year average.
0.06Leland Grove, Sunday, 30 August
Climate normal for this date — 60-year average.
0.09
Leland Grove, Monday, 31 August
Climate normal for this date — 60-year average.
0.17Leland Grove, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.11Leland Grove, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.09Leland Grove, Thursday, 3 September
Climate normal for this date — 60-year average.
0.1Leland Grove, Friday, 4 September
Climate normal for this date — 60-year average.
0.04Leland Grove, Saturday, 5 September
Climate normal for this date — 60-year average.
0.05Leland Grove, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Leland Grove, Monday, 7 September
Climate normal for this date — 60-year average.
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 Leland Grove, 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 Leland Grove, 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.
Sun and moon today
Weather history
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