Chance of Wrong · forecast accuracy

Tracking Xweather forecasts vs actuals for 50 US state capitals

← Dashboard · New Hampshire · America/New_York · 43.21, -71.54

Latest observation
59.0°F
2026-07-16 02:00 EDT · temp 59.0°F · feels 59.0°F · RH 87% · dew 55.0°F · wind 0.0 mph
Hour samples (7d)
48
Temperature matches
Temp MAE
5.10°
Earliest forecast vs actual

Hourly accuracy — Temperature

Click an hour to load its forecast evolution above. Switch metrics with the control above.

Hour (local) Forecast Actual Error Lead (h)
2026-07-16 02:00 EDT 66.0°F 59.0°F +7.0° 48.0
2026-07-16 01:00 EDT 68.0°F 68.0°F +0.0° 47.0
2026-07-16 00:00 EDT 70.0°F 68.0°F +2.0° 46.0
2026-07-15 23:00 EDT 72.0°F 66.0°F +6.0° 45.0
2026-07-15 22:00 EDT 75.0°F 69.0°F +6.0° 44.0
2026-07-15 21:00 EDT 78.0°F 71.0°F +7.0° 43.0
2026-07-15 20:00 EDT 81.0°F 77.0°F +4.0° 42.0
2026-07-15 19:00 EDT 84.0°F 79.0°F +5.0° 41.0
2026-07-15 18:00 EDT 87.0°F 80.0°F +7.0° 40.0
2026-07-15 17:00 EDT 90.0°F 80.0°F +10.0° 39.0
2026-07-15 16:00 EDT 89.0°F 81.0°F +8.0° 38.0
2026-07-15 15:00 EDT 89.0°F 82.0°F +7.0° 37.0
2026-07-15 14:00 EDT 89.0°F 84.0°F +5.0° 36.0
2026-07-15 13:00 EDT 88.0°F 84.0°F +4.0° 35.0
2026-07-15 12:00 EDT 86.0°F 83.0°F +3.0° 34.0
2026-07-15 11:00 EDT 85.0°F 80.0°F +5.0° 33.0
2026-07-15 10:00 EDT 83.0°F 78.0°F +5.0° 32.0
2026-07-15 09:00 EDT 80.0°F 78.0°F +2.0° 31.0
2026-07-15 08:00 EDT 77.0°F 77.0°F +0.0° 30.0
2026-07-15 07:00 EDT 75.0°F 76.0°F -1.0° 29.0
2026-07-15 06:00 EDT 73.0°F 75.0°F -2.0° 28.0
2026-07-15 05:00 EDT 75.0°F 78.0°F -3.0° 27.0
2026-07-15 04:00 EDT 76.0°F 75.0°F +1.0° 26.0
2026-07-15 03:00 EDT 78.0°F 75.0°F +3.0° 25.0
2026-07-15 02:00 EDT 80.0°F 75.0°F +5.0° 24.0
2026-07-15 01:00 EDT 82.0°F 75.0°F +7.0° 23.0
2026-07-15 00:00 EDT 83.0°F 79.0°F +4.0° 22.0
2026-07-14 23:00 EDT 84.0°F 79.0°F +5.0° 21.0
2026-07-14 22:00 EDT 85.0°F 79.0°F +6.0° 20.0
2026-07-14 21:00 EDT 87.0°F 80.0°F +7.0° 19.0
2026-07-14 20:00 EDT 92.0°F 82.0°F +10.0° 18.0
2026-07-14 19:00 EDT 95.0°F 85.0°F +10.0° 17.0
2026-07-14 18:00 EDT 95.0°F 88.0°F +7.0° 16.0
2026-07-14 17:00 EDT 97.0°F 87.0°F +10.0° 15.0
2026-07-14 16:00 EDT 96.0°F 88.0°F +8.0° 14.0
2026-07-14 15:00 EDT 95.0°F 86.0°F +9.0° 13.0
2026-07-14 14:00 EDT 94.0°F 85.0°F +9.0° 12.0
2026-07-14 13:00 EDT 92.0°F 82.0°F +10.0° 11.0
2026-07-14 12:00 EDT 90.0°F 80.0°F +10.0° 10.0
2026-07-14 11:00 EDT 87.0°F 80.0°F +7.0° 9.0
2026-07-14 10:00 EDT 83.0°F 80.0°F +3.0° 8.0
2026-07-14 09:00 EDT 78.0°F 78.0°F +0.0° 7.0
2026-07-14 08:00 EDT 73.0°F 78.0°F -5.0° 6.0
2026-07-14 07:00 EDT 69.0°F 73.0°F -4.0° 5.0
2026-07-14 06:00 EDT 67.0°F 68.0°F -1.0° 4.0
2026-07-14 05:00 EDT 66.0°F 67.0°F -1.0° 3.0
2026-07-14 04:00 EDT 67.0°F 68.0°F -1.0° 2.0
2026-07-14 03:00 EDT 68.0°F 71.0°F -3.0° 1.0

Daily forecast evolution — 2026-07-14

How the forecasted daily high and low for this local calendar day changed each time we re-collected, until the day ended. Lead time is hours until local midnight (end of day). Final actuals: high 88.0°F , low 67.0°F. · Clear date

Daily high forecast vs actual

Each point is the forecasted daily high at that collection time. Lead time is hours until the local day ended. Green dashed = finalized actual high.

76°82°88°94°100° 22h18h14h10h6h2h actual 88.0°F Lead time (hours)
Forecast Actual
Daily high error (forecast − actual)

Positive = forecast high too warm; negative = too cool. Move the cursor across the chart for details.

-10°-5°+0°+5°+10° 22h18h14h10h6h2h Lead time (hours)
Daily low forecast vs actual

Each point is the forecasted daily low at that collection time. Lead time is hours until the local day ended. Green dashed = finalized actual low.

65°70°76°81°86° 22h18h14h10h6h2h actual 67.0°F Lead time (hours)
Forecast Actual
Daily low error (forecast − actual)

Positive = forecast low too warm; negative = too cool. Move the cursor across the chart for details.

-18°-9°+0°+9°+18° 22h18h14h10h6h2h Lead time (hours)
Collected at (local) Lead (h) Fcst high Act high High err Fcst low Act low Low err
2026-07-14 02:00 EDT 22.0 97.0°F 88.0°F +9.0° 73.0°F 67.0°F +6.0°
2026-07-14 03:00 EDT 21.0 97.0°F 88.0°F +9.0° 73.0°F 67.0°F +6.0°
2026-07-14 04:00 EDT 20.0 97.0°F 88.0°F +9.0° 74.0°F 67.0°F +7.0°
2026-07-14 05:00 EDT 19.0 97.0°F 88.0°F +9.0° 74.0°F 67.0°F +7.0°
2026-07-14 06:00 EDT 18.0 97.0°F 88.0°F +9.0° 74.0°F 67.0°F +7.0°
2026-07-14 07:00 EDT 17.0 98.0°F 88.0°F +10.0° 74.0°F 67.0°F +7.0°
2026-07-14 08:00 EDT 16.0 98.0°F 88.0°F +10.0° 74.0°F 67.0°F +7.0°
2026-07-14 09:00 EDT 15.0 98.0°F 88.0°F +10.0° 74.0°F 67.0°F +7.0°
2026-07-14 10:00 EDT 14.0 97.0°F 88.0°F +9.0° 84.0°F 67.0°F +17.0°
2026-07-14 11:00 EDT 13.0 97.0°F 88.0°F +9.0° 84.0°F 67.0°F +17.0°
2026-07-14 12:00 EDT 12.0 97.0°F 88.0°F +9.0° 84.0°F 67.0°F +17.0°
2026-07-14 13:00 EDT 11.0 96.0°F 88.0°F +8.0° 84.0°F 67.0°F +17.0°
2026-07-14 14:00 EDT 10.0 96.0°F 88.0°F +8.0° 84.0°F 67.0°F +17.0°
2026-07-14 15:00 EDT 9.0 96.0°F 88.0°F +8.0° 84.0°F 67.0°F +17.0°
2026-07-14 16:00 EDT 8.0 96.0°F 88.0°F +8.0° 84.0°F 67.0°F +17.0°
2026-07-14 17:00 EDT 7.0 89.0°F 88.0°F +1.0° 82.0°F 67.0°F +15.0°
2026-07-14 18:00 EDT 6.0 88.0°F 88.0°F +0.0° 82.0°F 67.0°F +15.0°
2026-07-14 19:00 EDT 5.0 87.0°F 88.0°F -1.0° 82.0°F 67.0°F +15.0°
2026-07-14 20:00 EDT 4.0 82.0°F 88.0°F -6.0° 78.0°F 67.0°F +11.0°
2026-07-14 21:00 EDT 3.0 80.0°F 88.0°F -8.0° 78.0°F 67.0°F +11.0°
2026-07-14 22:00 EDT 2.0 78.0°F 88.0°F -10.0° 78.0°F 67.0°F +11.0°

Daily high / low

Earliest daily forecast vs finalized calendar-day max/min (only after the local day ends). Click a date to see how the high/low forecast evolved toward the actual.

Local date Fcst high Act high High err Fcst low Act low Low err
2026-07-15 92.0°F 84.0°F +8.0° 64.0°F 66.0°F -2.0°
2026-07-14 97.0°F 88.0°F +9.0° 73.0°F 67.0°F +6.0°