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Dave's Sweater
46 days on the record

Right Ray / Wrong Ray | Sugar Grove

Every forecast for Sugar Grove is a claim about tomorrow. This board grades each one we track against what the sky actually did, on the same rubric as Boone. Sugar Grove stands alone here: no blended average, no borrowed scores.

Sugar Grove's forecast

Sugar Grove Scoreboard

Every forecaster we track for Sugar Grove, ranked by average. Our own Dave's Sweater Index (marked ours) is graded right in the mix.

  • MET Norway94.6
    44R - 2M - 0W | 46 days
  • Dave's Sweater Indexours93.7
    46R - 0M - 0W | 46 days
  • Visual Crossing89.8
    43R - 1M - 0W | 44 days
  • Open-Meteo89.4
    43R - 3M - 0W | 46 days
  • Google88.2
    44R - 0M - 0W | 44 days
  • Tomorrow.io85.9
    40R - 4M - 0W | 44 days
  • WeatherAPI85.9
    39R - 4M - 1W | 44 days
  • OpenWeather84.9
    34R - 8M - 1W | 43 days
  • National Weather Service78.1
    27R - 17M - 2W | 46 days
R
Right, 75+
M
Meh, 60 to 74
W
Wrong, under 60
Trend
7-day rolling average

Latest scored day | September 9, 2026

Sugar Grove's forecasts, graded against what the sky actually did. The math is under each score.

What actually happened
Hi: 80.8° / Lo: 59° | Wind: 8.2 mph | Rain: 0"
Overcast
MET Norwayday's bestFree100.0/100
Predicted hi / lo
80.2° / 58.6°
Wind
8.1 mph
Rain
—
Show the math ↓
Field
Predicted → actual
Pts
High temp | ±0.6°
80.2° → 80.8°
30/30
Low temp | ±0.4°
58.6° → 59°
30/30
Wind | ±0.1 mph
8.1 mph → 8.2 mph
20/20
Precip | ±0"
0" → 0"
20/20
Open-MeteoFree100.0/100
Predicted hi / lo
80.4° / 58.8°
Wind
6.3 mph
Rain
0"
Show the math ↓
Field
Predicted → actual
Pts
High temp | ±0.4°
80.4° → 80.8°
30/30
Low temp | ±0.2°
58.8° → 59°
30/30
Wind | ±1.9 mph
6.3 mph → 8.2 mph
20/20
Precip | ±0"
0" → 0"
20/20
Tomorrow.ioFree96.4/100
Predicted hi / lo
79.6° / 57°
Wind
6.6 mph
Rain
—
Show the math ↓
Field
Predicted → actual
Pts
High temp | ±1.2°
79.6° → 80.8°
29.4/30
Low temp | ±2°
57° → 59°
27/30
Wind | ±1.6 mph
6.6 mph → 8.2 mph
20/20
Precip | ±0"
0" → 0"
20/20
GoogleFree90.3/100
Predicted hi / lo
79.3° / 55.4°
Wind
5 mph
Rain
—
Show the math ↓
Field
Predicted → actual
Pts
High temp | ±1.5°
79.3° → 80.8°
28.5/30
Low temp | ±3.6°
55.4° → 59°
22.2/30
Wind | ±3.2 mph
5 mph → 8.2 mph
19.6/20
Precip | ±0"
0" → 0"
20/20
WeatherAPIFree89.7/100
Predicted hi / lo
78.6° / 56.7°
Wind
3.8 mph
Rain
—
Show the math ↓
Field
Predicted → actual
Pts
High temp | ±2.2°
78.6° → 80.8°
26.4/30
Low temp | ±2.3°
56.7° → 59°
26.1/30
Wind | ±4.4 mph
3.8 mph → 8.2 mph
17.2/20
Precip | ±0"
0" → 0"
20/20
National Weather ServiceFree89.6/100
Predicted hi / lo
80° / 60°
Wind
0 mph
Rain
—
Show the math ↓
Field
Predicted → actual
Pts
High temp | ±0.8°
80° → 80.8°
30/30
Low temp | ±1°
60° → 59°
30/30
Wind | ±8.2 mph
0 mph → 8.2 mph
9.6/20
Precip | ±0"
0" → 0"
20/20
Visual CrossingFree84.4/100
Predicted hi / lo
77.2° / 55.8°
Wind
4.6 mph
Rain
—
Show the math ↓
Field
Predicted → actual
Pts
High temp | ±3.6°
77.2° → 80.8°
22.2/30
Low temp | ±3.2°
55.8° → 59°
23.4/30
Wind | ±3.6 mph
4.6 mph → 8.2 mph
18.8/20
Precip | ±0"
0" → 0"
20/20
OpenWeatherday's worstFree69.4/100
Predicted hi / lo
73.5° / 63.1°
Wind
4 mph
Rain
—
Show the math ↓
Field
Predicted → actual
Pts
High temp | ±7.3°
73.5° → 80.8°
11.1/30
Low temp | ±4.1°
63.1° → 59°
20.7/30
Wind | ±4.2 mph
4 mph → 8.2 mph
17.6/20
Precip | ±0"
0" → 0"
20/20

Each forecast is scored out of 100 across four fields, by closeness to the actual recorded conditions. Those fields are high temp (30), low temp (30), wind (20, scored as a range when the source gives one) and precipitation (20, form and amount graded together, snow-aware). Same rubric for every town.

Full methodology | Boone's board

What they're predicting for Sugar Grove

Here's what each forecast says for Thursday, September 10: Logged before the actuals exist. Come back once the day's in to see who was right.

Open-Meteo
Hi / Lo
82° / 63°
Wind
10 mph
Precip
No precip
NWS
Hi / Lo
81° / 62°
Wind
5 mph
Precip
No precip
Met.no
Hi / Lo
81° / 73°
Wind
12 mph
Precip
No precip
OpenWeatherMap
Hi / Lo
81° / 72°
Wind
9 mph
Precip
No precip
WeatherAPI
Hi / Lo
82° / 62°
Wind
11 mph
Precip
No precip
Visual Crossing
Hi / Lo
79° / 60°
Wind
10 mph
Precip
Rain
Tomorrow.io
Hi / Lo
81° / 62°
Wind
11 mph
Precip
No precip
Google Weather
Hi / Lo
81° / 59°
Wind
10 mph
Precip
Rain