gpt-5.4 Analysis · Mar 12, 2026
Unsafe
MEDIUM RISK
gpt-5.4
86% confidence
Summary
Driving conditions are unsettled today, with rain through much of the day, gusty northwest winds, and a transition to rain/snow late afternoon into early evening. Roads are likely wet for much of the day, with the most concern from about 4 PM to 7 PM when mixed precipitation and then likely snow move in as temperatures fall.
Hourly Forecast
7 AM 60%
16 mph
8 AM 77%
17 mph
9 AM 80%
17 mph
10 AM 80%
17 mph
11 AM 70%
17 mph
12 PM 60%
16 mph
1 PM 50%
16 mph
2 PM 40%
15 mph
3 PM 35%
15 mph
4 PM 30%
14 mph
5 PM 24%
14 mph
6 PM 57%
12 mph
7 PM 10%
10 mph
8 PM 2%
9 mph
9 PM 2%
9 mph
10 PM 1%
9 mph
11 PM 0%
9 mph
Key Factors
- 01 Rain is likely from 7 AM through early afternoon, with precipitation chances peaking around 77-80%, which can reduce traction and increase stopping distance.
- 02 Northwest winds of 14-17 mph with gusts up to 33 mph may make driving harder, especially on exposed roads and for higher-profile vehicles.
- 03 Temperatures fall from the 50s into the upper 30s and low 40s through late day, increasing concern as precipitation changes from rain to rain/snow and then snow.
- 04 Chance of rain and snow begins around 4 PM, with light snow likely around 6 PM and snow likely before 7 PM, creating the day's highest risk period.
- 05 No active weather alerts are posted, but the forecast still indicates a notable weather-related driving hazard window later today.
- 06 Visibility data is not provided, so confidence is reduced somewhat regarding how much precipitation may affect sight distance.
Confidence
86%
Recommendation
If you must drive, the safer morning slot is around 10:30 AM-12:30 PM, when conditions remain above freezing and hazards are mainly wet roads despite ongoing light rain. The safer evening slot is around 8:00 PM-10:00 PM, after the snow chance drops off and skies begin clearing. Avoid driving if possible from about 4:00 PM-7:00 PM due to the transition to rain/snow and likely snow.