NWCG Fire Behavior Field Reference Guide - Tons of great stuff here, especially under the "Weather" tab.

Webinar on Burn Objectives and Fire Weather - Erin Banwell and Miller Bailey cover a range of topics in an hour. Highly recommend watching the entire hour, but weather information begins about 31 minutes in.

Wildfire and Weather Information Map - Aggregated data from NIFC wildfire and Rx incidents (not all incidents shown), and real-time weather for NWS weather stations.

Weather Underground - Crowd-sourced weather data. Station data is available to the public for free. Precise locations of stations are obscured to protect owners' privacy. Zoom in to see if there are stations in your area.

Earth - Visualization of global weather conditions.

Real-time Lightning Map

PG&E Weather Map - Similar to windy.com, but shows real-time data from PG&E's weather stations.

Geostationary Operational Environmental Satellite (GOES) - Satellite imagery from the GOES-17 satellite. Use the "Products" option to pick different views.

Mammoth Weather - Weather blog run by Howard Sheckter, a meteorological hobbyist. I'd default to Dr. Swain if you need to cite an expert, but Howard clearly knows what he's talking about.