claude-opus-5 Analysis · Mar 18, 2026
Safe
LOW RISK
claude-opus-5
85% confidence
Summary
Dry, mostly sunny conditions with light winds and essentially no precipitation on March 18. Temperatures start near 25F in the morning and rise to about 40F by late afternoon, falling back near freezing overnight.
Hourly Forecast
7 AM 0%
6 mph
8 AM 0%
6 mph
9 AM 2%
5 mph
10 AM 1%
6 mph
11 AM 0%
6 mph
12 PM 0%
5 mph
1 PM 0%
2 mph
2 PM 0%
3 mph
3 PM 0%
5 mph
4 PM 0%
6 mph
5 PM 0%
7 mph
6 PM 0%
6 mph
7 PM 0%
6 mph
8 PM 0%
5 mph
9 PM 1%
5 mph
10 PM 1%
3 mph
11 PM 1%
3 mph
Key Factors
- 01 No active weather alerts
- 02 Precipitation probability 0-2% all day; no rain, snow, or freezing rain expected
- 03 Light winds 2-7 mph, no gust concerns for high-profile vehicles
- 04 Sub-freezing temps 25-31F before about 11am could allow residual ice or frost on untreated/shaded surfaces and bridges
- 05 Temperatures drop back to 32-35F after 8pm, a minor refreeze risk if any moisture is present
- 06 Wind chill values as low as 18F
- 07 Visibility and road-surface data not provided in the forecast
Confidence
85%
Recommendation
Safe to drive with normal caution. Best morning window is 10:00am-12:00pm once temperatures climb above freezing; best evening window is 5:00pm-8:00pm while temps are still 35-40F. If driving before 10am, watch for frost or black ice on bridges and shaded spots, and allow extra time to defrost windows. After 9pm, slow slightly on bridges as temps approach 32F.