gpt-5.4 Analysis · Sep 20, 2026
Safe
MEDIUM RISK
gpt-5.4
82% confidence
Summary
Driving is generally possible today, but steady rain is expected for most of the day with the wettest periods in the morning and again from late afternoon through evening. Warm temperatures limit ice risk, but wet roads, reduced visibility, and a slight thunderstorm chance this evening increase caution needs.
Hourly Forecast
7 AM 28%
5 mph
8 AM 87%
6 mph
9 AM 97%
6 mph
10 AM 79%
7 mph
11 AM 89%
8 mph
12 PM 67%
8 mph
1 PM 35%
8 mph
2 PM 59%
8 mph
3 PM 60%
7 mph
4 PM 70%
6 mph
5 PM 81%
6 mph
6 PM 89%
5 mph
7 PM 96%
3 mph
8 PM 76%
2 mph
9 PM 70%
2 mph
10 PM 57%
2 mph
11 PM 27%
3 mph
Key Factors
- 01 Rain is forecast nearly all day, with very high precipitation chances from about 8:00 AM to noon and again from about 5:00 PM to 9:00 PM.
- 02 Daytime forecast calls for 100% chance of rain with a total additional rainfall of about 0.25 to 0.5 inch during the day, plus another 0.25 to 0.5 inch at night.
- 03 A slight chance of thunderstorms develops after 5:00 PM and continues into the night, which can briefly worsen visibility and road conditions.
- 04 Temperatures stay well above freezing, so snow and ice are not a concern.
- 05 Winds are mostly light during the day, but nighttime gusts could reach 22 mph; this is a secondary concern compared with rain.
- 06 Visibility data is not provided, so the full extent of visibility reduction from rain cannot be confirmed.
Confidence
82%
Recommendation
If you can choose, the safer morning driving window is 7:00-8:00 AM, when rain chances are lowest early in the day. The safer evening window is 10:00-11:00 PM, when rain chances ease compared with earlier evening; avoid nonessential driving from about 8:00 AM-12:00 PM and 5:00-9:00 PM, when rain is most persistent and evening thunderstorms are possible.