gpt-5.4-nano Analysis · Aug 18, 2026
Unsafe
MEDIUM RISK
gpt-5.4-nano
62% confidence
Summary
Today has patchy fog in the morning (around 7–10am) and again later with patchy fog after evening thunderstorms (roughly after 8pm). Expect isolated showers and thunderstorms at times, which can reduce visibility and increase slick roads.
Hourly Forecast
7 AM 22%
1 mph
8 AM 23%
1 mph
9 AM 20%
1 mph
10 AM 17%
2 mph
11 AM 14%
3 mph
12 PM 16%
3 mph
1 PM 18%
3 mph
2 PM 20%
3 mph
3 PM 20%
5 mph
4 PM 20%
5 mph
5 PM 20%
5 mph
6 PM 18%
3 mph
7 PM 15%
2 mph
8 PM 13%
2 mph
9 PM 10%
1 mph
10 PM 7%
1 mph
11 PM 4%
1 mph
Key Factors
- 01 Patchy fog forecast from 7:00–10:00 AM (-04:00), with very high relative humidity (93–97%), increasing the chance of poor visibility.
- 02 Isolated showers and thunderstorms are forecast from about 9:00 AM through 7:00 PM, which can bring sudden reduced visibility and wet/slick driving conditions.
- 03 Evening period shows 'Isolated Showers And Thunderstorms then Patchy Fog' with patchy fog after 8:00 PM, implying another visibility hazard late in the day.
Confidence
62%
Recommendation
Avoid the highest-risk times: 7:00–10:00 AM (patchy fog) and 8:00 PM–10:00 PM (thunderstorms transitioning to patchy fog). If you must drive, choose the safer window 11:00 AM–3:00 PM (partly sunny to fewer fog issues), and for the evening consider 6:30–8:00 PM only if thunderstorms are not affecting your route; otherwise delay until after 10:00 PM when 'Mostly Clear' is forecast.