Weather in Twin Grove, IL
Twin Grove, Sunday, 9 August, 04:20
Mostly clear. Feels like 70°. High 90°, low 68°.
Monthly outlook for Twin Grove, IL: average high 85.3°, average low 68.6°. That is 2.4° above the climate normal for August. Precipitation is expected on 7 days (about 2.0 inches), against a normal of 5 days and 1.7 inches. The warmest day looks like 20 August (98.4°), the coolest 14 August (58.8°).
Ten-day blocks vs climate normal
| Period | Forecast high | Normal | Difference |
|---|---|---|---|
| 9 August – 18 August | 81.7° | 81° | +0.4° |
| 19 August – 28 August | 91.4° | 81.4° | +5.6° |
| 29 August – 7 September | at normal | 79.8° | — |
August records over 66 years
Climate normals and records are computed from the nearest reference point — Bloomington (7 mi).
0
Twin Grove, Monday, 10 August
Partly cloudy. High 94°, low 76°.
0.04
Twin Grove, Tuesday, 11 August
Light rain. High 91°, low 69°.
0.52Twin Grove, Wednesday, 12 August
Rain. High 79°, low 72°.
0.05Twin Grove, Thursday, 13 August
Light rain. High 79°, low 63°.
1.06Twin Grove, Friday, 14 August
Heavy rain. High 68°, low 59°.
0.05Twin Grove, Saturday, 15 August
Light rain. High 74°, low 61°.
0.07Twin Grove, Sunday, 16 August
Light rain. High 79°, low 64°.
0Twin Grove, Monday, 17 August
Partly cloudy. High 80°, low 65°.
0Twin Grove, Tuesday, 18 August
Partly cloudy. High 81°, low 66°.
0
Twin Grove, Wednesday, 19 August
Overcast. High 90°, low 70°.
0Twin Grove, Thursday, 20 August
Overcast. High 98°, low 74°.
0Twin Grove, Friday, 21 August
Partly cloudy. High 88°, low 74°.
0.03Twin Grove, Saturday, 22 August
Light rain. High 97°, low 72°.
0.01Twin Grove, Sunday, 23 August
Light rain. High 94°, low 76°.
0.14Twin Grove, Monday, 24 August
Light rain. High 82°, low 68°.
0.12Twin Grove, Tuesday, 25 August
Climate normal for this date — 60-year average.
0.13
Twin Grove, Wednesday, 26 August
Climate normal for this date — 60-year average.
0.09Twin Grove, Thursday, 27 August
Climate normal for this date — 60-year average.
0.12Twin Grove, Friday, 28 August
Climate normal for this date — 60-year average.
0.13Twin Grove, Saturday, 29 August
Climate normal for this date — 60-year average.
0.08Twin Grove, Sunday, 30 August
Climate normal for this date — 60-year average.
0.08Twin Grove, Monday, 31 August
Climate normal for this date — 60-year average.
0.15Twin Grove, Tuesday, 1 September
Climate normal for this date — 60-year average.
0.07Twin Grove, Wednesday, 2 September
Climate normal for this date — 60-year average.
0.07Twin Grove, Thursday, 3 September
Climate normal for this date — 60-year average.
0.11Twin Grove, Friday, 4 September
Climate normal for this date — 60-year average.
0.04Twin Grove, Saturday, 5 September
Climate normal for this date — 60-year average.
0.09Twin Grove, Sunday, 6 September
Climate normal for this date — 60-year average.
0.07Twin 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 Twin 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 Twin 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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